prepareGaslessRequest
function prepareGaslessRequest(    Omit<TransactionResultWithMetadata<unknown>, "data">  >,): Promise<  | {      body: string;      headers: { "Content-Type": string; "x-api-key": string };      method: string;      url: string;    }  | { body: string; method: string; url: string }>;
  Omit<TransactionResultWithMetadata<unknown>, "data">>;