def in_use_connection_count(self, address):
try:<EOL><INDENT>connections = self.connections[address]<EOL><DEDENT>except KeyError:<EOL><INDENT>return <NUM_LIT:0><EOL><DEDENT>else:<EOL><INDENT>return sum(<NUM_LIT:1> if connection.in_use else <NUM_LIT:0> for connection in connections)<EOL><DEDENT>
Count the number of connections currently in use to a given
        address.