/******************************************************************************
 *                                 IAM Role
 *****************************************************************************/
import type { ICredentialProviderConfig } from './credential-provider';
import { CredentialProviderType } from './credential-provider';
import type { Grant } from '../../../../aws-iam';
import type { IGateway } from '../gateway-base';
/**
 * Gateway IAM Role credential provider configuration implementation
 * Can be used with Lambda and Smithy targets
 * @internal
 */
export declare class GatewayIamRoleCredentialProviderConfig implements ICredentialProviderConfig {
    readonly credentialProviderType = CredentialProviderType.GATEWAY_IAM_ROLE;
    constructor();
    /**
     * @internal
     */
    _render(): any;
    /**
     * No-op for IAM role authentication - no additional permissions are required.
     * When using IAM role authentication for outbound calls, the gateway uses its own execution
     * role to authenticate with the target endpoint. Unlike API Key and OAuth credential providers
     * which require permissions to access external credential stores (Secrets Manager, Token Vault),
     * IAM role authentication leverages AWS IAM's native authentication without additional resources.
     * @param _gateway The gateway (unused - no credential provider permissions needed)
     * @returns undefined - no additional credential provider permissions to grant
     */
    grantNeededPermissionsToRole(_gateway: IGateway): Grant | undefined;
}