/**
 * OAuth Token Request (RFC 6749 Section 4.1.3, 4.3.2, 6)
 *
 * Supports all grant types in a single DTO:
 * - authorization_code
 * - client_credentials
 * - refresh_token
 */
export declare class OAuthTokenRequestDto {
    grant_type: string;
    code?: string;
    redirect_uri?: string;
    code_verifier?: string;
    client_id: string;
    client_secret?: string;
    refresh_token?: string;
    scope?: string;
}
/**
 * OAuth Token Response (RFC 6749 Section 5.1)
 */
export declare class OAuthTokenResponseDto {
    access_token: string;
    token_type: "Bearer";
    expires_in: number;
    refresh_token?: string;
    scope?: string;
}
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