Common module
-------------

.. module:: flyforms.common

This module contains frequently used in FlyForms constants and classes

.. py:data:: UNSET

    Frequently used constant, it is a reflection of unidentified values

.. py:data:: jsonify_types

    Supported types for JSON encoding and decoding operations

.. py:function:: is_set(value)

    Checks is given value is not :py:data:`.UNSET`

.. autoclass:: FrozenDict