/**
 * staticTokens — a dev/test {@link CredentialProvider} backed by canned credentials.
 *
 * No network, no SDK. Use it to develop tools that need credentials without
 * standing up AgentCore Identity (or any IdP). Production swaps it for
 * `agentCoreIdentity()` — the tool code never changes.
 *
 *   // a plain string is treated as a bearer token (the common case):
 *   const credentials = staticTokens({ github: 'ghp_dev_xxx' });
 *   // …or give an explicit kind:
 *   const credentials = staticTokens({ internal: apiKey('k', 'x-internal-key') });
 *
 *   const r = await credentials.getCredential({ service: 'github' });
 *   if (isCredentialIssued(r)) callGithub({ headers: r.credential.toHeaders() });
 */
import type { Credential, CredentialProvider } from './types.js';
export interface StaticTokensOptions {
    /** Optional id (defaults to 'static-tokens'). */
    readonly id?: string;
    /** Optional fixed expiry (unix seconds) applied to every credential. */
    readonly expiresAt?: number;
}
/**
 * Build a {@link CredentialProvider} from a `service → credential` map. A plain
 * string value is treated as a bearer token; a {@link Credential} is used as-is.
 * Always 2-legged (issues directly); throws if a requested service has none.
 */
export declare function staticTokens(creds: Readonly<Record<string, string | Credential>>, options?: StaticTokensOptions): CredentialProvider;
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