import type { ErrorObject, ValidateFunction } from "ajv/dist/2020.js";
/**
 * Look-aside validators keyed by `block.type`. Populated by the caller
 * (validate-block-kit.ts) with one compiled validator per block def, so we
 * can re-validate a misbehaving block against just its discriminator-matched
 * branch and report focused errors instead of the full oneOf cascade.
 */
export type FocusValidators = ReadonlyMap<string, ValidateFunction>;
/**
 * Format AJV errors with normalized paths and friendly per-keyword messages.
 *
 * When a block fails its `oneOf` evaluation, AJV reports a failure against
 * every branch (~80 errors for a single typo). We collapse this by
 * re-validating each offending block against just the schema branch matching
 * its declared `type`, replacing the union noise with the real reason that
 * specific block didn't validate. Blocks whose `type` isn't a recognized block
 * kind fall back to the raw (deduplicated) AJV output.
 *
 * @param errors - the raw `validator.errors` array from AJV
 * @param root - the (normalized) input AJV ran against — used to read each
 *   block's `type` so we can pick the focused branch validator
 * @param target - validation target, controls path-normalization rooting
 * @param focusValidators - per-block-type compiled validators
 */
export declare function formatAjvErrors(errors: readonly ErrorObject[], root: unknown, target: "blocks" | "modal" | "home", focusValidators: FocusValidators): string[];
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