import type { ExternalImportRegistry } from './import-metadata.js';
export type { ExternalImportRegistry } from './import-metadata.js';
export type ExternalSignatureMap = Record<string, string>;
export declare const PYTHON_STDLIB_SIGNATURES: Record<string, ExternalSignatureMap>;
export declare function parseExternalSignatureMap(value: unknown): ExternalSignatureMap | undefined;
export declare function inferExternalSignature(registry: ExternalImportRegistry, packageName: string, importedName: string): string | undefined;
export declare function inferExternalSignatureMap(registry: ExternalImportRegistry, packageName: string): ExternalSignatureMap | undefined;
export declare function mergeExternalSignatureMaps(inferred: ExternalSignatureMap | undefined, explicit: ExternalSignatureMap | undefined): ExternalSignatureMap | undefined;