import type { PieceFrontmatter, PieceFrontMatterValue, PieceFrontmatterSchemaField, PieceFrontmatterProperty } from './frontmatter.js';
export declare function getFrontmatterValues<T = PieceFrontMatterValue>(obj: PieceFrontmatter, path: string): T[];
export declare function getFrontmatterValue<T = PieceFrontMatterValue>(obj: PieceFrontmatter, path: string): T | undefined;
export declare function setFrontmatterValue(obj: PieceFrontmatter, path: string, value: PieceFrontMatterValue): void;
export declare function unsetFrontmatterValue(obj: PieceFrontmatter, path: string): void;
export declare function resolveFieldPaths(fields: PieceFrontmatterSchemaField[], frontmatter: PieceFrontmatter, schemaPath: string): string[];
export declare function filterFrontmatterFields(fields: PieceFrontmatterSchemaField[], predicate: (field: PieceFrontmatterProperty) => boolean): string[];
export declare function findFrontmatterField(fields: PieceFrontmatterSchemaField[], path: string): PieceFrontmatterSchemaField | undefined;