onCreateShader property
      
      CartesianShaderCallback?
      get
      onCreateShader
      
    
    
    
Implementation
CartesianShaderCallback? get onCreateShader => _onCreateShader;
      
      set
      onCreateShader
      (CartesianShaderCallback? value) 
      
    
    
    
Implementation
set onCreateShader(CartesianShaderCallback? value) {
  if (_onCreateShader != value) {
    _onCreateShader = value;
    markNeedsLegendUpdate();
    markNeedsSegmentsPaint();
  }
}