code: func GetVertexAttribLdv(index uint32, pname uint32, params *float64) {
  	C.glowGetVertexAttribLdv(gpGetVertexAttribLdv, (C.GLuint)(index), (C.GLenum)(pname), (*C.GLdouble)(unsafe.Pointer(params)))
  }
docs: // Return a generic vertex attribute parameter