/**
 * Generates default metadata for NFT inscription
 */
export declare function generateDefaultMetadata(params: {
    name?: string;
    creator?: string;
    description?: string;
    type?: string;
    fileName?: string;
    mimeType?: string;
    operatorAccount: string;
}): {
    name: string;
    creator: string;
    description: string;
    type: string;
    image: string;
};