Function sub

frontend/src/plugins/cel/logic/resolve.ts:97–108

(subTree: CELExpr, expand: boolean)

        };
        const [left, right] = args;
        const sub = (subTree: CELExpr, expand: boolean) => {
          const subExpr = dfs(subTree);
          if (
            expand &&
            isConditionGroupExpr(subExpr) &&
            subExpr.operator === operator
          ) {
            group.args.push(...subExpr.args);
          } else {
            group.args.push(subExpr);
          }
        };
        sub(left, true);
        sub(right, false);
        return group;