mkschulze

class Channel(six.with_metaclass(abc.ABCMeta)):
    """Affords RPC invocation via generic methods on client-side.
    Channel objects implement the Context Manager type, although they need not
    support being entered and exited multiple times.
    """

    @abc.abstractmethod
    def subscribe(self, callback, try_to_connect=False):
        """Subscribe to this Channel's connectivity state machine.
        A Channel may be in any of the states described by ChannelConnectivity.

mkschulze

define

finance sub relation,
    relates allocates,
    relates includes;

element sub relation,
    relates holdselement,
    relates iselementof;