Method shouldDeriveSetStateType

source/python.js:17786–17796

(def, schema)

                }
            }
            shouldDeriveSetStateType(def, schema) {
                const noTypeAnnotations = schema.arguments.every((arg) => arg.is_inferred_type());
                const shouldInfer = def.name === '__setstate__' && noTypeAnnotations;
                if (!shouldInfer) {
                    return false;
                }
                if (def.name !== '__setstate__' && def.args.args.length !== 2) {
                    throw new python.Error(`Invalid '__setstate' method.`);
                }
                return true;
            }
            checkApplyNumInputs(apply, expected_inputs) {
                if (apply.args.length !== expected_inputs) {
                    throw new python.Error('Invalid number of arguments.');