def agentc_REMOVE_IDENTITY(self, data):
        """
        Remove a specific key from the agent's collection of identities.
        """
        blob, _ = getNS(data)
        k = keys.Key.fromString(blob, type='blob')
        del self.factory.keys[k.blob()]
        self.sendResponse(AGENT_SUCCESS, b'')

        Remove a specific key from the agent's collection of identities.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/ssh/agent.py