// Async
 public virtual Task <StripeExternalAccount> CreateAsync(string accountId, StripeExternalAccountCreateOptions options, StripeRequestOptions requestOptions = null, CancellationToken cancellationToken = default(CancellationToken))
 {
     return(PostAsync($"{Urls.BaseUrl}/accounts/{accountId}/external_accounts", requestOptions, cancellationToken, options));
 }
 // Sync
 public virtual StripeExternalAccount Create(string accountId, StripeExternalAccountCreateOptions options, StripeRequestOptions requestOptions = null)
 {
     return(Post($"{Urls.BaseUrl}/accounts/{accountId}/external_accounts", requestOptions, options));
 }