GD0110: The exported tool button is not a Callable
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                                      Value
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**Rule ID**                           GD0110
**Category**                          Usage
**Fix is breaking or non-breaking**   Breaking - If the property's type is changed to ``Callable``

                                      Non-breaking - If the ``[ExportToolButton]`` is replaced with ``[Export]``
**Enabled by default**                Yes
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Cause
-----

A property of a type different from ``Callable`` is annotated with the
``[ExportToolButton]`` attribute.

Rule description
----------------

The ``[ExportToolButton]`` attribute is used to create clickable buttons in the inspector so,
the property must be a ``Callable`` that will be executed when clicking the button.

How to fix violations
---------------------

To fix a violation of this rule, change the type of the property to ``Callable``.
Alternatively, if you intended to export a normal property, replace the
``[ExportToolButton]`` attribute with ``[Export]``.

When to suppress warnings
-------------------------

Do not suppress a warning from this rule. The exported property must be a ``Callable``
so it can executed in the editor when clicking the button in the inspector.