import type { BlockDefinition, PageBlock, ValidateBlocksResult } from './types';
export declare function defineBlock(definition: BlockDefinition): BlockDefinition;
/** Register blocks. Later registrations win, so an app can replace a default. */
export declare function registerBlocks(definitions: BlockDefinition[]): void;
export declare function getBlock(type: string): BlockDefinition | undefined;
export declare function allBlocks(): BlockDefinition[];
/**
 * Validate an untrusted block document (dashboard save, API write) into a
 * typed one. Unknown block types, unknown props, missing required props and
 * failed rules all reject - a page document is either fully valid or not
 * stored.
 */
export declare function validateBlocks(input: unknown): Promise<ValidateBlocksResult>;
/**
 * Parse a stored `blocks` column. Storage is trusted (it passed
 * validateBlocks on the way in), so this only guards shape, not schemas -
 * a render must not 500 because a block type was since unregistered.
 */
export declare function parseStoredBlocks(stored: unknown): PageBlock[];