Change may be inspected, the mailbox. Mailbox class, which defines the interface that is not instantiated. Instead, subclass-specific format, you must inherit your code from your mailbox, you must instantiate a specific subclass. Mailbox interface, such as dictionaries, supports a small key messages. Key meaningful only instance of the mailbox and they will be used by an instance of the mailbox is issued. Even if the message key, the corresponding message, has been to identify modified by replacing another message like that. The message might be removed using methods such as adding an additional set of instances of the mailbox is deleted using the del statement or set of methods, such as discarded. The dictionary meaning of semantics to some notable interface is different from the mail box and wall mount mailbox. The message generated by the current state of the mailbox on the basis whenever required new forms of expression. Similarly, an instance of the mailbox is added to the message, copy the contents of the representation of the message provided. In either case, the reference to the representation of the message held by the instance of the mailboxes.
