Connect to random agent from current :attr:`connections`.

        :returns: :class:`aiomas.Proxy` object for the connected agent.

async def random_connection(self):
        """Connect to random agent from current :attr:`connections`.

        :returns: :class:`aiomas.Proxy` object for the connected agent.
        """
        addr = choice(list(self._connections.keys()))
        return await self.env.connect(addr)