Use Sequence for serialized execution requests

Author: jtraglia

specs/electra/beacon-chain.md

@@ -992,9 +992,9 @@ class NewPayloadRequest(object):
 def notify_new_payload(self: ExecutionEngine,
                        execution_payload: ExecutionPayload,
                        parent_beacon_block_root: Root,
-                       execution_requests_list: list[bytes]) -> bool:
+                       execution_requests_list: Sequence[bytes]) -> bool:
     """
-    Return ``True`` if and only if ``execution_payload`` and ``execution_requests`` 
+    Return ``True`` if and only if ``execution_payload`` and ``execution_requests``
     are valid with respect to ``self.execution_state``.
     """
     ...
@@ -1145,7 +1145,7 @@ def process_withdrawals(state: BeaconState, payload: ExecutionPayload) -> None:
 *Note*: Encodes execution requests as defined by [EIP-7685](https://eips.ethereum.org/EIPS/eip-7685).
 
 ```python
-def get_execution_requests_list(execution_requests: ExecutionRequests) -> list[bytes]:
+def get_execution_requests_list(execution_requests: ExecutionRequests) -> Sequence[bytes]:
     deposit_bytes = serialize(execution_requests.deposits)
     withdrawal_bytes = serialize(execution_requests.withdrawals)
     consolidation_bytes = serialize(execution_requests.consolidations)

specs/electra/validator.md

@@ -54,7 +54,7 @@ class GetPayloadResponse(object):
     execution_payload: ExecutionPayload
     block_value: uint256
     blobs_bundle: BlobsBundle
-    execution_requests: List[bytes]  # [New in Electra]
+    execution_requests: Sequence[bytes]  # [New in Electra]
 ```
 
 ## Containers
@@ -90,7 +90,7 @@ has been built since the corresponding call to `notify_forkchoice_updated` metho
 ```python
 def get_payload(self: ExecutionEngine, payload_id: PayloadId) -> GetPayloadResponse:
     """
-    Return ExecutionPayload, uint256, BlobsBundle and List[bytes] objects.
+    Return ExecutionPayload, uint256, BlobsBundle and Sequence[bytes] objects.
     """
     # pylint: disable=unused-argument
     ...
@@ -194,10 +194,10 @@ in [EIP-7685](https://eips.ethereum.org/EIPS/eip-7685). The index of each elemen
 2. Set `block.body.execution_requests = get_execution_requests(execution_requests)`, where:
 
 ```python
-def get_execution_requests(execution_requests: List[bytes]) -> ExecutionRequests:
+def get_execution_requests(execution_requests: Sequence[bytes]) -> ExecutionRequests:
     deposits = deserialize(List[DepositRequest, MAX_DEPOSIT_REQUESTS_PER_PAYLOAD], execution_requests[0])
     withdrawals = deserialize(List[WithdrawalRequest, MAX_WITHDRAWAL_REQUESTS_PER_PAYLOAD], execution_requests[1])
-    consolidations = deserialize(List[ConsolidationRequest, MAX_CONSOLIDATION_REQUESTS_PER_PAYLOAD], 
+    consolidations = deserialize(List[ConsolidationRequest, MAX_CONSOLIDATION_REQUESTS_PER_PAYLOAD],
                                  execution_requests[2])
 
     return ExecutionRequests(deposits, withdrawals, consolidations)