PFNGLVERTEXWEIGHTFEXTPROCDart typedef
        PFNGLVERTEXWEIGHTFEXTPROCDart =
     void Function(double weight)
    
    
    
Implementation
typedef PFNGLVERTEXWEIGHTFEXTPROCDart = void Function(double weight);typedef PFNGLVERTEXWEIGHTFEXTPROCDart = void Function(double weight);