feat: protocol object for supported libp2p protocols

Author: LVivona

binding/python/py/synlink/swarm/protocol.py

@@ -0,0 +1,46 @@
+"""
+Protocol object that allows use to interface 
+with supported protocols on the synlink network.
+"""
+from synlink.typing import TProtocol
+from synlink.utils import _check_minimum_version
+
+if _check_minimum_version(3, 11):
+    from typing import Self
+else:
+    from typing_extensions import Self
+
+
+class Protocol(object):
+    """Network object allows us to see our StreamNetwork struct."""
+    _protocol : TProtocol
+
+    def __init__(self, data : TProtocol):
+        if not data.startswith('/'):
+            raise ValueError("Protocols should start with a /.")
+        self._protocol = data
+
+    @classmethod
+    def from_bytes(cls, data : bytes) -> Self:
+        data = data.decode()
+        cls(data)
+    
+    def to_bytes(self) -> bytes:
+        data = self._protocol.encode("utf-8")
+        return data
+
+    @classmethod
+    def from_str(cls, data : str) -> Self:
+        if not data.startswith('/'):
+            raise ValueError("Protocols should start with a /.")
+        cls(data)
+
+    @property
+    def protocol(self):
+        self._protocol
+
+    def __repr__(self) -> str:
+        return f"<synlin.swarm.protocol {self._protocol!s}>"
+    
+    def __str__(self) -> str:
+        return self._protocol