fix

Author: BobTheBuidler

faster_web3/middleware/formatting.py

@@ -67,7 +67,6 @@ def _format_response(
             appropriate_response = cast(EthSubscriptionParams, response[response_type])
             params = response["params"].copy()
             params["result"] = method_response_formatter(appropriate_response["result"])
-            response = response.copy()
             response[response_type] = params
         else:
             response[response_type] = method_response_formatter(appropriate_response)

faster_web3/providers/eth_tester/middleware.py

@@ -372,10 +372,10 @@ def guess_from(w3: "Web3", _: TxParams) -> ChecksumAddress:
 def fill_default(
     field: str, guess_func: Callable[..., Any], w3: "Web3", transaction: TxParams
 ) -> TxParams:
-    if field not in transaction or transaction[field] is None:
+    if transaction.get(field) is None:
         guess_val = guess_func(w3, transaction)
         transaction = transaction.copy()
-        transaction[field] = guess_val
+        transaction[field] = guess_val  # type: ignore [literal-required]
     return transaction
 
 
@@ -396,10 +396,10 @@ async def async_fill_default(
     async_w3: "AsyncWeb3[Any]",
     transaction: TxParams,
 ) -> TxParams:
-    if field not in transaction or transaction[field] is None:
+    if transaction.get(field) is None:
         guess_val = await guess_func(async_w3, transaction)
         transaction = transaction.copy()
-        transaction[field] = guess_val
+        transaction[field] = guess_val  # type: ignore [literal-required]
     return transaction