Required types for ABI type definitions

What was wrong?

Types for ABIs should match the spec.

The components attribute may not be present in all subtypes of ABIElement.

ABIElement subtypes, such as ABIEvent or ABIFunction may not require a components attribute for all inputs. The components attribute must be optional to accommodate TypedDicts of the form:

    abi_function = {
        "inputs": [{"name": "_arg0", "type": "uint256"}],
        "name": "logTwoEvents",
        "stateMutability": "nonpayable",
        "type": "function",
    }

How was it fixed?

total=False on the ABIComponent type makes all attributes optional, so instead using NotRequired to denote specific attributes as optional.

components can now be omitted when using ABIComponent.

Todo:

[x] Clean up commit history
[x] Add or update documentation related to these changes
[x] Add entry to the release notes

ethereum / eth-typing