Update type annotations in persistent provider and fix error in validation error message (#3635)

* fix validation.py

* Update persistent.py

---------

Co-authored-by: kclowes <[email protected]>

Author: Pricstas

Diff for: web3/_utils/validation.py

@@ -131,7 +131,7 @@ def validate_abi_value(abi_type: TypeStr, value: Any) -> None:
                 )
             if specified_length != len(value):
                 raise Web3TypeError(
-                    "The following array length does not the length specified"
+                    "The following array length does not match the length specified "
                     f"by the abi-type, {abi_type}: {value}"
                 )
 

Diff for: web3/providers/persistent/persistent.py

@@ -68,11 +68,15 @@ class PersistentConnectionProvider(AsyncJSONBaseProvider, ABC):
     logger = logging.getLogger("web3.providers.PersistentConnectionProvider")
     has_persistent_connection = True
 
-    _send_func_cache: Tuple[int, Callable[..., Coroutine[Any, Any, RPCRequest]]] = (
+    _send_func_cache: Tuple[
+        Optional[int], Optional[Callable[..., Coroutine[Any, Any, RPCRequest]]]
+    ] = (
         None,
         None,
     )
-    _recv_func_cache: Tuple[int, Callable[..., Coroutine[Any, Any, RPCResponse]]] = (
+    _recv_func_cache: Tuple[
+        Optional[int], Optional[Callable[..., Coroutine[Any, Any, RPCResponse]]]
+    ] = (
         None,
         None,
     )