class Plugin:
    def __init__(self):
        self.name = "Raw Text Protocol"

    def encode(self, text: str) -> bytes:
        return text.encode('utf-8')

    def decode(self, data: bytes) -> str:
        return data.decode('utf-8')

    def generate_service_signal(self, signal_type: str) -> bytes:
        return f"SIG:{signal_type}".encode('utf-8')

    def detect_service_signal(self, data: bytes) -> str:
        try:
            decoded = data.decode('utf-8')
            if decoded.startswith("SIG:"):
                return decoded.split(":", 1)[1]
            return None
        except:
            return None