'Return the task logs within a given range from cells,
optionally filtering by the host and/or state.  For cells, the
host should be a path like \'path!to!cell@host\'.  If no @host
is given, only task logs from a particular cell will be returned.'

def task_log_get_all(self, context, task_name, beginning, ending, host=None, state=None):

    return self.cells_rpcapi.task_log_get_all(context, task_name, beginning, ending, host=host, state=state)
