redis_001.py

class RESPObject:
    """
    Base class for RESP data types.
    
    Each RESP object maintains both its logical value and metadata about its
    wire format representation, enabling efficient parsing and serialization.
    """
    type: RESPObjectType
    value: Any
    bytes_length: int          # Length of actual data in bytes
    serialized_bytes_length: int  # Length including protocol overhead (\r\n etc.)

class RESPSimpleString(RESPObject):
    def __init__(self, value: str):
        self.type = RESPObjectType.SIMPLE_STRING
        self.value = value

class RESPBulkString(RESPObject):
    def __init__(self, value: Optional[str], bytes_length: Optional[int] = None):
        self.type = RESPObjectType.BULK_STRING
        self.value = value
        self.bytes_length = bytes_length