async def get_block_records_in_range(self, start: int, stop: int) -> Dict[(bytes32, BlockRecord)]:
    return (await self.block_store.get_block_records_in_range(start, stop))
async def get_block_records_in_range(self, start: int, stop: int) -> Dict[(bytes32, BlockRecord)]:
    return (await self.block_store.get_block_records_in_range(start, stop))