Update abi.py

Author: BobTheBuidler

web3/_utils/abi.py

@@ -128,7 +128,7 @@ def filter_by_types(types: Collection[str], contract_abi: ABI) -> List[ABIElemen
 
 def filter_by_argument_name(
     argument_names: Collection[str], contract_abi: ABI
-) -> Sequence[ABIElement]:
+) -> List[ABIElement]:
     """
     Return a list of each ``ABIElement`` which contains arguments matching provided
     names.
@@ -185,7 +185,7 @@ def get_name_from_abi_element_identifier(
 
 def get_abi_element_signature(
     abi_element_identifier: ABIElementIdentifier,
-    abi_element_argument_types: Optional[Sequence[str]] = None,
+    abi_element_argument_types: Optional[Iterable[str]] = None,
 ) -> str:
     element_name = get_name_from_abi_element_identifier(abi_element_identifier)
     argument_types = ",".join(abi_element_argument_types or [])