/** Stable identity for a configured provider credential slot. */
declare const credentialIdBrand: unique symbol;
export type CredentialId = string & {
    readonly [credentialIdBrand]: true;
};
export declare const DEFAULT_CREDENTIAL_LABEL = "default";
export declare const CREDENTIAL_LABEL_PATTERN: RegExp;
export declare function makeCredentialId(provider: string, label?: string): CredentialId;
export declare function parseCredentialId(value: string): {
    readonly provider: string;
    readonly label: string;
} | null;
export {};