import { OutputMode } from "@outfitter/cli/types";
type StructuredOutputMode = Extract<OutputMode, "json" | "jsonl">;
/** Output modes resolvable from CLI flags and env vars. */
type CliOutputMode = "human" | "json" | "jsonl";
/**
* Narrow an output mode to its structured subset (`"json"` | `"jsonl"`).
*
* Returns `undefined` when the mode is not machine-readable (e.g., `"human"`,
* `"tree"`, `"table"`) or when `mode` is `undefined`.
* This is a pure type-narrowing helper — it does NOT check env vars.
* Use `resolveOutputMode()` from `@outfitter/cli/query` for full resolution.
*/
declare function resolveStructuredOutputMode(mode?: OutputMode): StructuredOutputMode | undefined;
export { StructuredOutputMode, CliOutputMode, resolveStructuredOutputMode };