def METHOD_NAME(self):
    if self.inputs and self.inputs[0].is_linked:
        obj = bpy.data.objects[self.objects]
        if not self.uv:
            print ('!!! for node:',self.name,'!!! object',self.objects,'have no UV')
            if self.outputs and self.outputs[0].is_linked:
                self.outputs[0].sv_set([[]])
            return
        uv = self.uv
        v,p = self.UV(obj,uv)
        if self.outputs and self.outputs[0].is_linked:
            self.outputs[0].sv_set(v)
        if self.outputs and self.outputs[1].is_linked:
            self.outputs[1].sv_set(p)