Pulls messages from the server.
subscriptions_pull(subscription, max_messages = 100)character, Subscription Required, subscription where to pull
messages from
numeric Maximum number of messages to return
A named list with pulled messages
Other Subscription functions:
subscriptions_ack(),
subscriptions_create(),
subscriptions_delete(),
subscriptions_detach(),
subscriptions_exists(),
subscriptions_get(),
subscriptions_list(),
subscriptions_modify_ack_deadline(),
subscriptions_modify_pushconf(),
subscriptions_patch(),
subscriptions_seek()