/**
 * optional-bedrock.ts, the one place `@anthropic-ai/bedrock-sdk` is reached.
 *
 * The package is declared under `optionalDependencies` in
 * packages/sdk/package.json, and providers/amazon-bedrock.ts and
 * providers/amazon-bedrock-mantle.ts imported it statically, the package
 * itself for the two client classes, and its `core/auth.js` subpath for the
 * SigV4 signer the control-plane model listing reuses. Both modules are on the
 * daemon's graph through the provider registry, so an install without the
 * package did not lose Bedrock, it lost the daemon: see
 * utils/optional-dependency.ts for the measured failure.
 *
 * The specifiers below are written out literally so a bundler still sees them
 * and bundles the package when it IS installed; only the moment of evaluation
 * moves from module init to the call that needs a client or a signature.
 */
type BedrockModule = typeof import('@anthropic-ai/bedrock-sdk');
type BedrockAuthModule = typeof import('@anthropic-ai/bedrock-sdk/core/auth.js');
/**
 * Load the package, or throw an error whose message states that it is missing
 * and that it is an optional dependency. Every caller is inside an async
 * request or refresh path, so the throw lands where that provider's errors
 * are already handled.
 */
export declare function loadBedrockSdk(): Promise<BedrockModule>;
/**
 * The SigV4 signer `AnthropicBedrock` itself calls internally. A deep subpath
 * of the same optional package gets the same treatment as the package.
 */
export declare function loadBedrockAuth(): Promise<BedrockAuthModule>;
/** Whether the Bedrock providers can run in this installation, and why not. */
export declare function describeBedrockAvailability(): Promise<{
    available: boolean;
    reason?: string;
}>;
export {};
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