Method pushFrame

source/python.js:16650–16656

(b, starts_def)

                torch._C.runCleanupPasses(this.graph);
            }
            pushFrame(b, starts_def) {
                starts_def = starts_def || false;
                if (starts_def) {
                    this._def_stack.push({});
                }
                this.environment_stack = new torch._C.Environment(this.method, this.resolver, b, this.environment_stack);
            }
            popFrame(ends_def) {
                const old_frame = this.environment_stack;
                this.environment_stack = this.environment_stack.next;