String stateName
The name of the current state within the topmost
Position on the stack.
int stackDepth
The stack depth of the Position stack. This is
used to detect scenarios where using the back and forward buttons
navigates across a subdialog boundary, which means that the
saved stateName is likely no longer relevant.
Map<K,V> map
Map containing all currently active DialogContext instances for
the current user.
int serial
Serial number used to generate dialog instance identifiers.
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