diff --git a/Cargo.lock b/Cargo.lock
index 9d4c67ee..7ae6d5f2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,1669 +4,1610 @@
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 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe438c63458706e03479442743baae6c88256498e6431708f6dfc520a26515d3"
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- "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 1.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "lazy_static",
+ "regex",
 ]
 
 [[package]]
 name = "aho-corasick"
 version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
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- "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr",
 ]
 
 [[package]]
 name = "anyhow"
 version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85bb70cc08ec97ca5450e6eba421deeea5f172c0fc61f78b5357b2a8e8be195f"
 
 [[package]]
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+checksum = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
 
 [[package]]
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+checksum = "26c4f3195085c36ea8d24d32b2f828d23296a9370a28aa39d111f6f16bef9f3b"
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- "quote 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
 
 [[package]]
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+checksum = "1d49d90015b3c36167a20fe2810c5cd875ad504b39cff3d4eae7977e6b7c1cb2"
 
 [[package]]
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 [[package]]
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+checksum = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
+
+[[package]]
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 [[package]]
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- "byteorder 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.110 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder",
+ "serde",
 ]
 
 [[package]]
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+checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
 [[package]]
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- "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "radium 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "either",
+ "radium",
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 [[package]]
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+checksum = "5356f1d23ee24a1f785a56d1d1a5f0fd5b0f6a0c0fb2412ce11da71649ab78f6"
 
 [[package]]
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 [[package]]
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- "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
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- "socket2 0.3.12 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "curl-sys",
+ "libc",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "socket2",
+ "winapi 0.3.8",
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- "vcpkg 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cc",
+ "libc",
+ "libz-sys",
+ "openssl-sys",
+ "pkg-config",
+ "vcpkg",
+ "winapi 0.3.8",
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 [[package]]
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 dependencies = [
- "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if",
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 [[package]]
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- "uint 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethereum-types",
+ "rustc-hex",
+ "serde",
+ "serde_json",
+ "tiny-keccak 1.5.0",
+ "uint",
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 [[package]]
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- "tiny-keccak 2.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crunchy",
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+ "impl-rlp",
+ "impl-serde",
+ "tiny-keccak 2.0.2",
 ]
 
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
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- "uint 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethbloom",
+ "fixed-hash",
+ "impl-rlp",
+ "impl-serde",
+ "primitive-types",
+ "uint",
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 [[package]]
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- "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
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+ "ethers-contract",
+ "ethers-core",
+ "ethers-providers",
+ "ethers-signers",
+ "rand 0.5.6",
+ "serde",
+ "serde_json",
+ "tokio",
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 [[package]]
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- "thiserror 1.0.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethers-contract-abigen",
+ "ethers-contract-derive",
+ "ethers-core",
+ "ethers-providers",
+ "ethers-signers",
+ "once_cell",
+ "rustc-hex",
+ "serde",
+ "thiserror",
+ "tokio",
 ]
 
 [[package]]
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 dependencies = [
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- "syn 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "Inflector",
+ "anyhow",
+ "curl",
+ "ethers-core",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "rustc-hex",
+ "serde_json",
+ "syn",
+ "url",
 ]
 
 [[package]]
 name = "ethers-contract-derive"
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 dependencies = [
- "ethers-contract-abigen 0.1.0",
- "ethers-types 0.1.0",
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- "serde_json 1.0.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethers-contract-abigen",
+ "ethers-core",
+ "proc-macro2",
+ "quote",
+ "serde_json",
+ "syn",
+]
+
+[[package]]
+name = "ethers-core"
+version = "0.1.0"
+dependencies = [
+ "arrayvec",
+ "bincode",
+ "ethabi",
+ "ethereum-types",
+ "glob",
+ "rand 0.5.6",
+ "rlp",
+ "rustc-hex",
+ "secp256k1",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "tiny-keccak 2.0.2",
+ "zeroize",
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 [[package]]
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 dependencies = [
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- "tokio 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "async-trait",
+ "ethers-core",
+ "reqwest",
+ "rustc-hex",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "tokio",
+ "url",
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 [[package]]
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- "zeroize 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ethers-core",
+ "ethers-providers",
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 [[package]]
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- "static_assertions 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder",
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 [[package]]
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+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
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- "fuchsia-zircon-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags",
+ "fuchsia-zircon-sys",
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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
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+checksum = "3cbac2ed2ba24cc90f5e06485ac8c7c1e5449fe8911aef4d8877218af021a5b8"
diff --git a/Cargo.toml b/Cargo.toml
index ee3b6c6e..ea39ee92 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,5 +5,5 @@ members = [
     "./crates/ethers-contract",
     "./crates/ethers-providers",
     "./crates/ethers-signers",
-    "./crates/ethers-types",
+    "./crates/ethers-core",
 ]
diff --git a/crates/ethers-contract/Cargo.toml b/crates/ethers-contract/Cargo.toml
index a15e95f7..77436aa7 100644
--- a/crates/ethers-contract/Cargo.toml
+++ b/crates/ethers-contract/Cargo.toml
@@ -10,7 +10,7 @@ ethers-contract-derive = { version = "0.1.0", path = "ethers-contract-derive", o
 
 ethers-providers = { version = "0.1.0", path = "../ethers-providers" }
 ethers-signers = { version = "0.1.0", path = "../ethers-signers" }
-ethers-types = { version = "0.1.0", path = "../ethers-types" }
+ethers-core = { version = "0.1.0", path = "../ethers-core" }
 
 serde = { version = "1.0.110", default-features = false }
 rustc-hex = { version = "2.1.0", default-features = false }
diff --git a/crates/ethers-contract/ethers-contract-abigen/Cargo.toml b/crates/ethers-contract/ethers-contract-abigen/Cargo.toml
index df49456b..00f39f03 100644
--- a/crates/ethers-contract/ethers-contract-abigen/Cargo.toml
+++ b/crates/ethers-contract/ethers-contract-abigen/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT OR Apache-2.0"
 description = "Code generation for type-safe bindings to Ethereum smart contracts"
 
 [dependencies]
-ethers-types = { path = "../../ethers-types" }
+ethers-core = { path = "../../ethers-core" }
 
 anyhow = "1.0"
 curl = "0.4"
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/contract.rs b/crates/ethers-contract/ethers-contract-abigen/src/contract.rs
index 80091439..ac31777c 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/contract.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/contract.rs
@@ -12,7 +12,7 @@ mod types;
 use super::util;
 use super::Args;
 use anyhow::{anyhow, Context as _, Result};
-use ethers_types::{abi::Abi, Address};
+use ethers_core::{abi::Abi, types::Address};
 use inflector::Inflector;
 use proc_macro2::{Ident, Literal, TokenStream};
 use quote::quote;
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/contract/common.rs b/crates/ethers-contract/ethers-contract-abigen/src/contract/common.rs
index f01ef54b..9b1817a0 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/contract/common.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/contract/common.rs
@@ -1,6 +1,6 @@
 use super::Context;
 
-use ethers_types::Address;
+use ethers_core::types::Address;
 use proc_macro2::{Literal, TokenStream};
 use quote::quote;
 
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/contract/events.rs b/crates/ethers-contract/ethers-contract-abigen/src/contract/events.rs
index a067ac9b..a9c10b0a 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/contract/events.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/contract/events.rs
@@ -1,5 +1,5 @@
 use super::{types, util, Context};
-use ethers_types::abi::{Event, EventExt, EventParam, Hash, ParamType};
+use ethers_core::abi::{Event, EventExt, EventParam, Hash, ParamType};
 
 use anyhow::Result;
 use inflector::Inflector;
@@ -286,7 +286,7 @@ fn expand_hash(hash: Hash) -> TokenStream {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use ethers_types::abi::{EventParam, ParamType};
+    use ethers_core::abi::{EventParam, ParamType};
 
     #[test]
     fn expand_transfer_filter() {
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/contract/methods.rs b/crates/ethers-contract/ethers-contract-abigen/src/contract/methods.rs
index 2743a137..362b70f8 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/contract/methods.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/contract/methods.rs
@@ -1,7 +1,7 @@
 use super::{types, util, Context};
-use ethers_types::{
+use ethers_core::{
     abi::{Function, FunctionExt, Param},
-    Selector,
+    types::Selector,
 };
 
 use anyhow::{anyhow, Context as _, Result};
@@ -107,7 +107,7 @@ fn expand_selector(selector: Selector) -> TokenStream {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use ethers_types::abi::ParamType;
+    use ethers_core::abi::ParamType;
 
     #[test]
     fn expand_inputs_empty() {
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/contract/types.rs b/crates/ethers-contract/ethers-contract-abigen/src/contract/types.rs
index ac8c0307..b36c9f66 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/contract/types.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/contract/types.rs
@@ -1,5 +1,5 @@
 use anyhow::{anyhow, Result};
-use ethers_types::abi::ParamType;
+use ethers_core::abi::ParamType;
 use proc_macro2::{Literal, TokenStream};
 use quote::quote;
 
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/lib.rs b/crates/ethers-contract/ethers-contract-abigen/src/lib.rs
index 3b547133..1b7e1627 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/lib.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/lib.rs
@@ -19,7 +19,7 @@ mod rustfmt;
 mod source;
 mod util;
 
-pub use ethers_types::Address;
+pub use ethers_core::types::Address;
 pub use source::Source;
 pub use util::parse_address;
 
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/source.rs b/crates/ethers-contract/ethers-contract-abigen/src/source.rs
index 03cc3221..048fa114 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/source.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/source.rs
@@ -1,6 +1,6 @@
 //! Module implements reading of contract artifacts from various sources.
 use super::util;
-use ethers_types::Address;
+use ethers_core::types::Address;
 
 use anyhow::{anyhow, Context, Error, Result};
 use std::{
diff --git a/crates/ethers-contract/ethers-contract-abigen/src/util.rs b/crates/ethers-contract/ethers-contract-abigen/src/util.rs
index 4ef8adef..532b9f54 100644
--- a/crates/ethers-contract/ethers-contract-abigen/src/util.rs
+++ b/crates/ethers-contract/ethers-contract-abigen/src/util.rs
@@ -1,4 +1,4 @@
-use ethers_types::Address;
+use ethers_core::types::Address;
 
 use anyhow::{anyhow, Result};
 use curl::easy::Easy;
diff --git a/crates/ethers-contract/ethers-contract-derive/Cargo.toml b/crates/ethers-contract/ethers-contract-derive/Cargo.toml
index 9fbec896..8f3a0672 100644
--- a/crates/ethers-contract/ethers-contract-derive/Cargo.toml
+++ b/crates/ethers-contract/ethers-contract-derive/Cargo.toml
@@ -10,7 +10,7 @@ description = "Proc macro for type-safe bindings generation to Ethereum smart co
 proc-macro = true
 
 [dependencies]
-ethers-types = { path = "../../ethers-types" }
+ethers-core = { path = "../../ethers-core" }
 ethers-contract-abigen = { path = "../ethers-contract-abigen" }
 
 serde_json = "1.0.53"
diff --git a/crates/ethers-contract/ethers-contract-derive/src/abigen.rs b/crates/ethers-contract/ethers-contract-derive/src/abigen.rs
index 99727931..22dfda20 100644
--- a/crates/ethers-contract/ethers-contract-derive/src/abigen.rs
+++ b/crates/ethers-contract/ethers-contract-derive/src/abigen.rs
@@ -3,7 +3,7 @@
 use crate::spanned::{ParseInner, Spanned};
 
 use ethers_contract_abigen::Builder;
-use ethers_types::abi::{Function, FunctionExt, Param};
+use ethers_core::abi::{Function, FunctionExt, Param};
 
 use proc_macro2::{Span, TokenStream as TokenStream2};
 use quote::{quote, ToTokens as _};
diff --git a/crates/ethers-contract/src/call.rs b/crates/ethers-contract/src/call.rs
index 51f29fe9..86c36267 100644
--- a/crates/ethers-contract/src/call.rs
+++ b/crates/ethers-contract/src/call.rs
@@ -1,9 +1,9 @@
+use ethers_core::{
+    abi::{Detokenize, Error as AbiError, Function, InvalidOutputType},
+    types::{Address, BlockNumber, TransactionRequest, H256, U256},
+};
 use ethers_providers::{networks::Network, JsonRpcClient};
 use ethers_signers::{Client, Signer};
-use ethers_types::{
-    abi::{Detokenize, Error as AbiError, Function, InvalidOutputType},
-    Address, BlockNumber, TransactionRequest, H256, U256,
-};
 
 use std::{fmt::Debug, marker::PhantomData};
 
diff --git a/crates/ethers-contract/src/contract.rs b/crates/ethers-contract/src/contract.rs
index 8d7bfe1e..44467b94 100644
--- a/crates/ethers-contract/src/contract.rs
+++ b/crates/ethers-contract/src/contract.rs
@@ -1,11 +1,11 @@
 use crate::{ContractCall, Event};
 
+use ethers_core::{
+    abi::{Abi, Detokenize, Error, EventExt, Function, FunctionExt, Tokenize},
+    types::{Address, Filter, NameOrAddress, Selector, TransactionRequest},
+};
 use ethers_providers::{networks::Network, JsonRpcClient};
 use ethers_signers::{Client, Signer};
-use ethers_types::{
-    abi::{Abi, Detokenize, Error, EventExt, Function, FunctionExt, Tokenize},
-    Address, Filter, NameOrAddress, Selector, TransactionRequest,
-};
 
 use rustc_hex::ToHex;
 use std::{collections::HashMap, fmt::Debug, hash::Hash, marker::PhantomData};
diff --git a/crates/ethers-contract/src/event.rs b/crates/ethers-contract/src/event.rs
index 684a1b53..d5bde24f 100644
--- a/crates/ethers-contract/src/event.rs
+++ b/crates/ethers-contract/src/event.rs
@@ -2,9 +2,9 @@ use crate::ContractError;
 
 use ethers_providers::{networks::Network, JsonRpcClient, Provider};
 
-use ethers_types::{
+use ethers_core::{
     abi::{Detokenize, Event as AbiEvent, RawLog},
-    BlockNumber, Filter, ValueOrArray, H256,
+    types::{BlockNumber, Filter, ValueOrArray, H256},
 };
 
 use std::marker::PhantomData;
diff --git a/crates/ethers-contract/src/factory.rs b/crates/ethers-contract/src/factory.rs
index ee68dd2e..1462cda5 100644
--- a/crates/ethers-contract/src/factory.rs
+++ b/crates/ethers-contract/src/factory.rs
@@ -1,11 +1,11 @@
 use crate::{Contract, ContractError};
 
+use ethers_core::{
+    abi::{Abi, Tokenize},
+    types::{Bytes, TransactionRequest},
+};
 use ethers_providers::{networks::Network, JsonRpcClient};
 use ethers_signers::{Client, Signer};
-use ethers_types::{
-    abi::{Abi, Tokenize},
-    Bytes, TransactionRequest,
-};
 
 use std::time::Duration;
 use tokio::time;
diff --git a/crates/ethers-contract/src/lib.rs b/crates/ethers-contract/src/lib.rs
index c1498a0e..23c8acc2 100644
--- a/crates/ethers-contract/src/lib.rs
+++ b/crates/ethers-contract/src/lib.rs
@@ -17,8 +17,8 @@ pub use ethers_contract_abigen::Builder;
 pub use ethers_contract_derive::abigen;
 
 // re-export for convenience
+pub use ethers_core::abi;
+pub use ethers_core::types;
 pub use ethers_providers as providers;
 pub use ethers_signers as signers;
-pub use ethers_types as types;
-pub use ethers_types::abi;
 pub use once_cell::sync::Lazy;
diff --git a/crates/ethers-types/Cargo.toml b/crates/ethers-core/Cargo.toml
similarity index 98%
rename from crates/ethers-types/Cargo.toml
rename to crates/ethers-core/Cargo.toml
index 65a6ad0f..a63b0152 100644
--- a/crates/ethers-types/Cargo.toml
+++ b/crates/ethers-core/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "ethers-types"
+name = "ethers-core"
 version = "0.1.0"
 authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
diff --git a/crates/ethers-types/src/abi/mod.rs b/crates/ethers-core/src/abi/mod.rs
similarity index 98%
rename from crates/ethers-types/src/abi/mod.rs
rename to crates/ethers-core/src/abi/mod.rs
index 2d67f96f..e3ae2e63 100644
--- a/crates/ethers-types/src/abi/mod.rs
+++ b/crates/ethers-core/src/abi/mod.rs
@@ -1,6 +1,6 @@
 //! This module implements extensions to the `ethabi` API.
 // Adapted from [Gnosis' ethcontract](https://github.com/gnosis/ethcontract-rs/blob/master/common/src/abiext.rs)
-use crate::{utils::id, Selector};
+use crate::{types::Selector, utils::id};
 
 pub use ethabi::Contract as Abi;
 pub use ethabi::*;
diff --git a/crates/ethers-types/src/abi/tokens.rs b/crates/ethers-core/src/abi/tokens.rs
similarity index 99%
rename from crates/ethers-types/src/abi/tokens.rs
rename to crates/ethers-core/src/abi/tokens.rs
index 5fbb44fa..7297a537 100644
--- a/crates/ethers-types/src/abi/tokens.rs
+++ b/crates/ethers-core/src/abi/tokens.rs
@@ -1,7 +1,10 @@
 //! Contract Functions Output types.
 // Adapted from: [rust-web3](https://github.com/tomusdrw/rust-web3/blob/master/src/contract/tokens.rs)
 #![allow(clippy::all)]
-use crate::{abi::Token, Address, Bytes, H256, U128, U256};
+use crate::{
+    abi::Token,
+    types::{Address, Bytes, H256, U128, U256},
+};
 
 use arrayvec::ArrayVec;
 use thiserror::Error;
@@ -469,7 +472,7 @@ impl_fixed_types!(1024);
 #[cfg(test)]
 mod tests {
     use super::{Detokenize, Tokenizable};
-    use crate::{Address, U256};
+    use crate::types::{Address, U256};
     use ethabi::Token;
 
     fn output<R: Detokenize>() -> R {
diff --git a/crates/ethers-types/src/lib.rs b/crates/ethers-core/src/lib.rs
similarity index 68%
rename from crates/ethers-types/src/lib.rs
rename to crates/ethers-core/src/lib.rs
index d4ce76ea..2fb74df9 100644
--- a/crates/ethers-types/src/lib.rs
+++ b/crates/ethers-core/src/lib.rs
@@ -9,7 +9,7 @@
 //! signing the hash of the result.
 //!
 //! ```rust
-//! use ethers_types::{PrivateKey, Address};
+//! use ethers_core::types::{PrivateKey, Address};
 //!
 //! let message = "Some data";
 //! let key = PrivateKey::new(&mut rand::thread_rng());
@@ -24,6 +24,12 @@
 //! assert_eq!(recovered, address);
 //! ```
 //!
+//! # Utilities
+//!
+//! The crate provides utilities for launching local Ethereum testnets by using `ganache-cli`
+//! via the `GanacheBuilder` struct. In addition, you're able to compile contracts on the
+//! filesystem by providing a glob to their path, using the `Solc` struct.
+//!
 //! # ABI Encoding and Decoding
 //!
 //! This crate re-exports the [`ethabi`](http://docs.rs/ethabi) crate's functions
@@ -34,14 +40,20 @@
 //! The version of `rand` used in the `secp256k1` crate is not compatible with the
 //! latest one in crates at the time of writing (rand version 0.5.1, secp256k1 version 0.17.1)
 //! As a result, the RNGs used for generating private keys must use a compatible rand crate
-//! version. For convenience, we re-export it so that consumers can use it as `ethers_types::rand`.
-mod crypto;
-pub use crypto::*;
+//! version. For convenience, we re-export it so that consumers can use it as `ethers_core::rand`.
 
-mod chainstate;
-pub use chainstate::*;
+/// Ethereum related datatypes
+pub mod types;
 
 #[cfg(feature = "abi")]
 pub mod abi;
 
+/// Various utilities
 pub mod utils;
+
+// re-export the non-standard rand version so that other crates don't use the
+// wrong one by accident
+pub use rand;
+
+// re-export libsecp
+pub use secp256k1;
diff --git a/crates/ethers-types/src/chainstate/block.rs b/crates/ethers-core/src/types/chainstate/block.rs
similarity index 98%
rename from crates/ethers-types/src/chainstate/block.rs
rename to crates/ethers-core/src/types/chainstate/block.rs
index d00bfe80..f28c144d 100644
--- a/crates/ethers-types/src/chainstate/block.rs
+++ b/crates/ethers-core/src/types/chainstate/block.rs
@@ -1,5 +1,5 @@
 // Taken from https://github.com/tomusdrw/rust-web3/blob/master/src/types/block.rs
-use crate::{Address, Bloom, Bytes, H256, U256, U64};
+use crate::types::{Address, Bloom, Bytes, H256, U256, U64};
 use serde::{ser::SerializeStruct, Deserialize, Serialize, Serializer};
 
 /// The block type returned from RPC calls.
@@ -150,7 +150,7 @@ impl Serialize for BlockNumber {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::{Transaction, TxHash};
+    use crate::types::{Transaction, TxHash};
 
     #[test]
     fn deserialize_blk_no_txs() {
diff --git a/crates/ethers-types/src/chainstate/bytes.rs b/crates/ethers-core/src/types/chainstate/bytes.rs
similarity index 100%
rename from crates/ethers-types/src/chainstate/bytes.rs
rename to crates/ethers-core/src/types/chainstate/bytes.rs
diff --git a/crates/ethers-types/src/chainstate/ens.rs b/crates/ethers-core/src/types/chainstate/ens.rs
similarity index 99%
rename from crates/ethers-types/src/chainstate/ens.rs
rename to crates/ethers-core/src/types/chainstate/ens.rs
index 3acec927..ddc42ccc 100644
--- a/crates/ethers-types/src/chainstate/ens.rs
+++ b/crates/ethers-core/src/types/chainstate/ens.rs
@@ -1,4 +1,4 @@
-use crate::Address;
+use crate::types::Address;
 use rlp::{Encodable, RlpStream};
 use serde::{ser::Error as SerializationError, Deserialize, Deserializer, Serialize, Serializer};
 
diff --git a/crates/ethers-types/src/chainstate/log.rs b/crates/ethers-core/src/types/chainstate/log.rs
similarity index 98%
rename from crates/ethers-types/src/chainstate/log.rs
rename to crates/ethers-core/src/types/chainstate/log.rs
index 80cf5d89..d12a1234 100644
--- a/crates/ethers-types/src/chainstate/log.rs
+++ b/crates/ethers-core/src/types/chainstate/log.rs
@@ -1,5 +1,8 @@
 // Adapted from https://github.com/tomusdrw/rust-web3/blob/master/src/types/log.rs
-use crate::{utils::keccak256, Address, BlockNumber, Bytes, H256, U256, U64};
+use crate::{
+    types::{Address, BlockNumber, Bytes, H256, U256, U64},
+    utils::keccak256,
+};
 use serde::{ser::SerializeSeq, Deserialize, Serialize, Serializer};
 use std::str::FromStr;
 
diff --git a/crates/ethers-types/src/chainstate/mod.rs b/crates/ethers-core/src/types/chainstate/mod.rs
similarity index 76%
rename from crates/ethers-types/src/chainstate/mod.rs
rename to crates/ethers-core/src/types/chainstate/mod.rs
index 11d287ed..5f474287 100644
--- a/crates/ethers-types/src/chainstate/mod.rs
+++ b/crates/ethers-core/src/types/chainstate/mod.rs
@@ -21,10 +21,3 @@ pub use log::{Filter, Log, ValueOrArray};
 
 mod ens;
 pub use ens::NameOrAddress;
-
-// re-export the non-standard rand version so that other crates don't use the
-// wrong one by accident
-pub use rand;
-
-// re-export libsecp
-pub use secp256k1;
diff --git a/crates/ethers-types/src/chainstate/transaction.rs b/crates/ethers-core/src/types/chainstate/transaction.rs
similarity index 98%
rename from crates/ethers-types/src/chainstate/transaction.rs
rename to crates/ethers-core/src/types/chainstate/transaction.rs
index 3f6a5c34..fb906360 100644
--- a/crates/ethers-types/src/chainstate/transaction.rs
+++ b/crates/ethers-core/src/types/chainstate/transaction.rs
@@ -1,6 +1,7 @@
 //! Transaction types
 use crate::{
-    utils::keccak256, Address, Bloom, Bytes, Log, NameOrAddress, Signature, H256, U256, U64,
+    types::{Address, Bloom, Bytes, Log, NameOrAddress, Signature, H256, U256, U64},
+    utils::keccak256,
 };
 
 use rlp::RlpStream;
diff --git a/crates/ethers-types/src/crypto/keys.rs b/crates/ethers-core/src/types/crypto/keys.rs
similarity index 98%
rename from crates/ethers-types/src/crypto/keys.rs
rename to crates/ethers-core/src/types/crypto/keys.rs
index a024fd6d..c2a1ad0f 100644
--- a/crates/ethers-types/src/crypto/keys.rs
+++ b/crates/ethers-core/src/types/crypto/keys.rs
@@ -1,6 +1,6 @@
 use crate::{
+    types::{Address, NameOrAddress, Signature, Transaction, TransactionRequest, H256, U256, U64},
     utils::{hash_message, keccak256},
-    Address, NameOrAddress, Signature, Transaction, TransactionRequest, H256, U256, U64,
 };
 
 use rand::Rng;
@@ -234,7 +234,7 @@ impl From<PrivateKey> for Address {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::Bytes;
+    use crate::types::Bytes;
     use rustc_hex::FromHex;
 
     #[test]
diff --git a/crates/ethers-types/src/crypto/mod.rs b/crates/ethers-core/src/types/crypto/mod.rs
similarity index 100%
rename from crates/ethers-types/src/crypto/mod.rs
rename to crates/ethers-core/src/types/crypto/mod.rs
diff --git a/crates/ethers-types/src/crypto/signature.rs b/crates/ethers-core/src/types/crypto/signature.rs
similarity index 98%
rename from crates/ethers-types/src/crypto/signature.rs
rename to crates/ethers-core/src/types/crypto/signature.rs
index dcd6b96c..6676194e 100644
--- a/crates/ethers-types/src/crypto/signature.rs
+++ b/crates/ethers-core/src/types/crypto/signature.rs
@@ -1,5 +1,8 @@
 // Code adapted from: https://github.com/tomusdrw/rust-web3/blob/master/src/api/accounts.rs
-use crate::{utils::hash_message, Address, PublicKey, H256};
+use crate::{
+    types::{Address, PublicKey, H256},
+    utils::hash_message,
+};
 
 use rustc_hex::ToHex;
 use secp256k1::{
@@ -191,7 +194,7 @@ impl From<H256> for RecoveryMessage {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::PrivateKey;
+    use crate::types::PrivateKey;
 
     #[test]
     fn recover_signature_from_message() {
diff --git a/crates/ethers-core/src/types/mod.rs b/crates/ethers-core/src/types/mod.rs
new file mode 100644
index 00000000..9d907069
--- /dev/null
+++ b/crates/ethers-core/src/types/mod.rs
@@ -0,0 +1,5 @@
+mod crypto;
+pub use crypto::*;
+
+mod chainstate;
+pub use chainstate::*;
diff --git a/crates/ethers-types/src/utils/ganache.rs b/crates/ethers-core/src/utils/ganache.rs
similarity index 100%
rename from crates/ethers-types/src/utils/ganache.rs
rename to crates/ethers-core/src/utils/ganache.rs
diff --git a/crates/ethers-types/src/utils/hash.rs b/crates/ethers-core/src/utils/hash.rs
similarity index 100%
rename from crates/ethers-types/src/utils/hash.rs
rename to crates/ethers-core/src/utils/hash.rs
diff --git a/crates/ethers-types/src/utils/mod.rs b/crates/ethers-core/src/utils/mod.rs
similarity index 100%
rename from crates/ethers-types/src/utils/mod.rs
rename to crates/ethers-core/src/utils/mod.rs
diff --git a/crates/ethers-types/src/utils/solc.rs b/crates/ethers-core/src/utils/solc.rs
similarity index 99%
rename from crates/ethers-types/src/utils/solc.rs
rename to crates/ethers-core/src/utils/solc.rs
index d173a806..2d98ba5a 100644
--- a/crates/ethers-types/src/utils/solc.rs
+++ b/crates/ethers-core/src/utils/solc.rs
@@ -12,7 +12,7 @@
 //!     .build();
 //! let contract = contracts.get("SimpleStorage").unwrap();
 //! ```
-use crate::{abi::Abi, Bytes};
+use crate::{abi::Abi, types::Bytes};
 use glob::glob;
 use rustc_hex::FromHex;
 use serde::{Deserialize, Serialize};
diff --git a/crates/ethers-providers/Cargo.toml b/crates/ethers-providers/Cargo.toml
index 16a7f91e..5f55ec14 100644
--- a/crates/ethers-providers/Cargo.toml
+++ b/crates/ethers-providers/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 
 [dependencies]
-ethers-types = { version = "0.1.0", path = "../ethers-types" }
+ethers-core = { version = "0.1.0", path = "../ethers-core" }
 
 async-trait = { version = "0.1.31", default-features = false }
 reqwest = { version = "0.10.4", default-features = false, features = ["json", "rustls-tls"] }
diff --git a/crates/ethers-providers/src/ens.rs b/crates/ethers-providers/src/ens.rs
index 446f91ad..3fddc944 100644
--- a/crates/ethers-providers/src/ens.rs
+++ b/crates/ethers-providers/src/ens.rs
@@ -1,6 +1,9 @@
 /// [Ethereum Name Service](https://docs.ens.domains/) support
 // Adapted from https://github.com/hhatto/rust-ens/blob/master/src/lib.rs
-use ethers_types::{utils::keccak256, Address, NameOrAddress, Selector, TransactionRequest, H256};
+use ethers_core::{
+    types::{Address, NameOrAddress, Selector, TransactionRequest, H256},
+    utils::keccak256,
+};
 
 // Selectors
 const ENS_REVERSE_REGISTRAR_DOMAIN: &str = "addr.reverse";
diff --git a/crates/ethers-providers/src/networks.rs b/crates/ethers-providers/src/networks.rs
index d95b1e62..36e055bf 100644
--- a/crates/ethers-providers/src/networks.rs
+++ b/crates/ethers-providers/src/networks.rs
@@ -1,6 +1,6 @@
 //! Networks are used inside wallets and providers to ensure replay protection across networks,
 //! as well as to allow functions to be called with ENS names instead of Addresses.
-use ethers_types::{Address, H160, U64};
+use ethers_core::types::{Address, H160, U64};
 
 /// Trait for specifying network specific metadata, such as the Chain Id or the ENS
 /// address.
diff --git a/crates/ethers-providers/src/provider.rs b/crates/ethers-providers/src/provider.rs
index 948326b3..139f0d6b 100644
--- a/crates/ethers-providers/src/provider.rs
+++ b/crates/ethers-providers/src/provider.rs
@@ -1,9 +1,12 @@
 use crate::{ens, http::Provider as HttpProvider, networks::Network, JsonRpcClient};
 
-use ethers_types::{
+use ethers_core::{
     abi::{self, Detokenize, ParamType},
-    utils, Address, Block, BlockId, BlockNumber, Bytes, Filter, Log, NameOrAddress, Selector,
-    Transaction, TransactionReceipt, TransactionRequest, TxHash, U256,
+    types::{
+        Address, Block, BlockId, BlockNumber, Bytes, Filter, Log, NameOrAddress, Selector,
+        Transaction, TransactionReceipt, TransactionRequest, TxHash, U256,
+    },
+    utils,
 };
 
 use serde::Deserialize;
diff --git a/crates/ethers-signers/Cargo.toml b/crates/ethers-signers/Cargo.toml
index 3b758378..78b92c26 100644
--- a/crates/ethers-signers/Cargo.toml
+++ b/crates/ethers-signers/Cargo.toml
@@ -5,5 +5,5 @@ authors = ["Georgios Konstantopoulos <me@gakonst.com>"]
 edition = "2018"
 
 [dependencies]
-ethers-types = { version = "0.1.0", path = "../ethers-types" }
+ethers-core = { version = "0.1.0", path = "../ethers-core" }
 ethers-providers = { version = "0.1.0", path = "../ethers-providers" }
diff --git a/crates/ethers-signers/src/client.rs b/crates/ethers-signers/src/client.rs
index fec5f125..aa100235 100644
--- a/crates/ethers-signers/src/client.rs
+++ b/crates/ethers-signers/src/client.rs
@@ -1,7 +1,7 @@
 use crate::Signer;
 
+use ethers_core::types::{Address, BlockNumber, NameOrAddress, TransactionRequest, TxHash};
 use ethers_providers::{networks::Network, JsonRpcClient, Provider};
-use ethers_types::{Address, BlockNumber, NameOrAddress, TransactionRequest, TxHash};
 
 use std::ops::Deref;
 
diff --git a/crates/ethers-signers/src/lib.rs b/crates/ethers-signers/src/lib.rs
index 94e6bc9f..42ee877b 100644
--- a/crates/ethers-signers/src/lib.rs
+++ b/crates/ethers-signers/src/lib.rs
@@ -44,7 +44,7 @@ pub use wallet::Wallet;
 mod client;
 pub use client::Client;
 
-use ethers_types::{Address, Signature, Transaction, TransactionRequest};
+use ethers_core::types::{Address, Signature, Transaction, TransactionRequest};
 use std::error::Error;
 
 /// Trait for signing transactions and messages
diff --git a/crates/ethers-signers/src/wallet.rs b/crates/ethers-signers/src/wallet.rs
index c28dc6a7..eee13aa4 100644
--- a/crates/ethers-signers/src/wallet.rs
+++ b/crates/ethers-signers/src/wallet.rs
@@ -2,9 +2,10 @@ use crate::{Client, Signer};
 
 use ethers_providers::{networks::Network, JsonRpcClient, Provider};
 
-use ethers_types::{
-    rand::Rng, secp256k1, Address, PrivateKey, PublicKey, Signature, Transaction,
-    TransactionRequest, TxError,
+use ethers_core::{
+    rand::Rng,
+    secp256k1,
+    types::{Address, PrivateKey, PublicKey, Signature, Transaction, TransactionRequest, TxError},
 };
 
 use std::{marker::PhantomData, str::FromStr};
diff --git a/crates/ethers/Cargo.toml b/crates/ethers/Cargo.toml
index 33c3d644..26d87683 100644
--- a/crates/ethers/Cargo.toml
+++ b/crates/ethers/Cargo.toml
@@ -10,19 +10,19 @@ full = [
     "contract",
     "providers",
     "signers",
-    "types",
+    "core",
 ]
 
 contract = ["ethers-contract"]
 providers = ["ethers-providers"]
 signers = ["ethers-signers"]
-types = ["ethers-types"]
+core = ["ethers-core"]
 
 [dependencies]
 ethers-contract = { version = "0.1.0", path = "../ethers-contract", features = ["abigen"], optional = true }
 ethers-providers = { version = "0.1.0", path = "../ethers-providers", optional = true }
 ethers-signers = { version = "0.1.0", path = "../ethers-signers", optional = true }
-ethers-types = { version = "0.1.0", path = "../ethers-types", optional = true }
+ethers-core = { version = "0.1.0", path = "../ethers-core", optional = true }
 
 [dev-dependencies]
 anyhow = "1.0.31"
diff --git a/crates/ethers/examples/contract.rs b/crates/ethers/examples/contract.rs
index ed73c69d..9abd4c83 100644
--- a/crates/ethers/examples/contract.rs
+++ b/crates/ethers/examples/contract.rs
@@ -1,9 +1,9 @@
 use anyhow::Result;
 use ethers::{
     contract::{abigen, ContractFactory},
+    core::utils::{GanacheBuilder, Solc},
     providers::HttpProvider,
     signers::MainnetWallet,
-    types::utils::{GanacheBuilder, Solc},
 };
 use std::convert::TryFrom;
 
diff --git a/crates/ethers/examples/ens.rs b/crates/ethers/examples/ens.rs
index fc1d72b9..7326387c 100644
--- a/crates/ethers/examples/ens.rs
+++ b/crates/ethers/examples/ens.rs
@@ -1,5 +1,5 @@
 use anyhow::Result;
-use ethers::{providers::HttpProvider, signers::MainnetWallet, types::TransactionRequest};
+use ethers::{core::types::TransactionRequest, providers::HttpProvider, signers::MainnetWallet};
 use std::convert::TryFrom;
 
 #[tokio::main]
diff --git a/crates/ethers/examples/get_logs.rs b/crates/ethers/examples/get_logs.rs
index 3a6ea74c..053dd2ef 100644
--- a/crates/ethers/examples/get_logs.rs
+++ b/crates/ethers/examples/get_logs.rs
@@ -1,7 +1,7 @@
 use anyhow::Result;
 use ethers::{
+    core::types::{Address, Filter},
     providers::{networks::Any, HttpProvider},
-    types::{Address, Filter},
 };
 use std::convert::TryFrom;
 
diff --git a/crates/ethers/examples/local_signer.rs b/crates/ethers/examples/local_signer.rs
index 5bf0dfaf..d4fe5059 100644
--- a/crates/ethers/examples/local_signer.rs
+++ b/crates/ethers/examples/local_signer.rs
@@ -1,8 +1,8 @@
 use anyhow::Result;
 use ethers::{
+    core::{types::TransactionRequest, utils::GanacheBuilder},
     providers::HttpProvider,
     signers::MainnetWallet,
-    types::{utils::GanacheBuilder, TransactionRequest},
 };
 use std::convert::TryFrom;
 
diff --git a/crates/ethers/examples/transfer_eth.rs b/crates/ethers/examples/transfer_eth.rs
index 86ea7f29..2dcaf0a3 100644
--- a/crates/ethers/examples/transfer_eth.rs
+++ b/crates/ethers/examples/transfer_eth.rs
@@ -1,7 +1,10 @@
 use anyhow::Result;
 use ethers::{
+    core::{
+        types::{BlockNumber, TransactionRequest},
+        utils::GanacheBuilder,
+    },
     providers::{networks::Any, HttpProvider},
-    types::{utils::GanacheBuilder, BlockNumber, TransactionRequest},
 };
 use std::convert::TryFrom;
 
diff --git a/crates/ethers/src/lib.rs b/crates/ethers/src/lib.rs
index a865986d..2287d0b1 100644
--- a/crates/ethers/src/lib.rs
+++ b/crates/ethers/src/lib.rs
@@ -30,7 +30,7 @@ pub mod signers {
     pub use ethers_signers::*;
 }
 
-#[cfg(feature = "types")]
-pub mod types {
-    pub use ethers_types::*;
+#[cfg(feature = "core")]
+pub mod core {
+    pub use ethers_core::*;
 }