original_docstring: 
          Invalidate the cached symbol pixmap
  
          The symbol invalidates its cache, whenever an attribute is changed
          that has an effect ob how to display a symbol. In case of derived
          classes with individual styles (>= `QwtSymbol.UserStyle`) it
          might be necessary to call invalidateCache() for attributes
          that are relevant for this style.
  
          .. seealso::
          
              :py:meth:`setCachePolicy()`, :py:meth:`drawSymbols()`
          
docstring: Invalidate the cached symbol pixmap
  The symbol invalidates its cache, whenever an attribute is changed
  that has an effect ob how to display a symbol. In case of derived
  classes with individual styles (>= `QwtSymbol.UserStyle`) it
  might be necessary to call invalidateCache() for attributes
  that are relevant for this style.
  
  
  
  
docstring_tokens: Invalidate the cached symbol pixmap The symbol invalidates its cache whenever an attribute is changed that has an effect ob how to display a symbol . In case of derived classes with individual styles ( > = ` QwtSymbol . UserStyle ` ) it might be necessary to call invalidateCache () for attributes that are relevant for this style .
code: def invalidateCache(self):
          """
          Invalidate the cached symbol pixmap
  
          The symbol invalidates its cache, whenever an attribute is changed
          that has an effect ob how to display a symbol. In case of derived
          classes with individual styles (>= `QwtSymbol.UserStyle`) it
          might be necessary to call invalidateCache() for attributes
          that are relevant for this style.
  
          .. seealso::
          
              :py:meth:`setCachePolicy()`, :py:meth:`drawSymbols()`
          """
          if self.__data.cache.pixmap is not None:
              self.__data.cache.pixmap = QPixmap()
code_tokens: def invalidateCache ( self ) : if self . __data . cache . pixmap is not None : self . __data . cache . pixmap = QPixmap ( )
short_docstring: Invalidate the cached symbol pixmap
  The symbol invalidates its cache, whenever an attribute is changed
  that has an effect ob how to display a symbol.
short_docstring_tokens: Invalidate the cached symbol pixmap The symbol invalidates its cache whenever an attribute is changed that has an effect ob how to display a symbol .
comment: """
          Invalidate the cached symbol pixmap
  
          The symbol invalidates its cache, whenever an attribute is changed
          that has an effect ob how to display a symbol. In case of derived
          classes with individual styles (>= `QwtSymbol.UserStyle`) it
          might be necessary to call invalidateCache() for attributes
          that are relevant for this style.
  
          .. seealso::
          
              :py:meth:`setCachePolicy()`, :py:meth:`drawSymbols()`
          """