Cumulative size in bytes of messages in the mailbox (including headers).
def get_total_size() -> int: ...
total_size = property(get_total_size, None)
This property contains the cumulative size in bytes of messages in the mailbox (including headers). When the class is not connected to the server, the value of this property is 0. When connected, it contains the cumulative size of all the messages in the mail box as reported by the POP server.
This property is read-only.