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:return: a wrapper of a DBus method that emits PropertiesChanged
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N)�_object�set�_properties_names�_find_properties_specs�_properties_specs)�selfr r r r �__init__F s zPropertiesChanges.__init__c C sT t �t|��}i }|jD ]6}t|t j�s*q|j|v rDtd�|j���|||j< q|S )z�Find specifications of DBus properties.
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Report the changed property:
.. code-block:: python
self.report_changed_property('X')
Emit all changes when the method is done:
.. code-block:: python
@emits_properties_changed
def SetX(x: Int):
self.set_x(x)
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