Method accept

source/python.js:1790–1797

(type, value)

                return false;
            }
            accept(type, value) {
                const token = this.peek();
                if (token.type === type && (!value || token.value === value)) {
                    this.read();
                    return true;
                }
                return false;
            }
            expect(type, value) {
                const token = this.peek();
                if (token.type !== type) {