/**
 * Monaco language identifiers supported for markdown code snippets.
 *
 * @private internal helper of `<CodeBlock/>`
 */
export type MonacoCodeBlockLanguage = 'javascript' | 'typescript' | 'html' | 'css' | 'python' | 'shell' | 'json' | 'sql' | 'book' | 'plaintext';
/**
 * Resolves a markdown fenced-code language label into a Monaco language identifier.
 *
 * Unknown languages intentionally resolve to `plaintext` so unsupported snippets render
 * as readable text without syntax highlighting.
 *
 * @param language - Raw markdown code fence language label (for example `ts`, `typescript`, `bash`).
 * @returns Canonical Monaco language identifier.
 *
 * @private internal helper of `<CodeBlock/>`
 */
export declare function resolveCodeBlockLanguage(language: string | undefined): MonacoCodeBlockLanguage;