Hard-coding issues when determining Python element types

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In the nunmpy library, there are a large number of C extension functions whose types are _ArrayFunctionDispatcher or ufunc. In order to extract the symbol information of these functions, we have to introduce hard coding when judging the symbol type:

var pyFuncTypes = map[string]bool{
	"ufunc":                      true,
	"method":                     true,
	"function":                   true,
	"method-wrapper":             true,
	"builtin_function_or_method": true,
	"_ArrayFunctionDispatcher":   true
}

How can I reduce this hardcoding in my code?