code: public com.squareup.okhttp.Call connectPostNamespacedPodExecAsync(String name, String namespace, String command, String container, Boolean stderr, Boolean stdin, Boolean stdout, Boolean tty, final ApiCallback<String> callback) throws ApiException {
  
          ProgressResponseBody.ProgressListener progressListener = null;
          ProgressRequestBody.ProgressRequestListener progressRequestListener = null;
  
          if (callback != null) {
              progressListener = new ProgressResponseBody.ProgressListener() {
                  @Override
                  public void update(long bytesRead, long contentLength, boolean done) {
                      callback.onDownloadProgress(bytesRead, contentLength, done);
                  }
              };
  
              progressRequestListener = new ProgressRequestBody.ProgressRequestListener() {
                  @Override
                  public void onRequestProgress(long bytesWritten, long contentLength, boolean done) {
                      callback.onUploadProgress(bytesWritten, contentLength, done);
                  }
              };
          }
  
          com.squareup.okhttp.Call call = connectPostNamespacedPodExecValidateBeforeCall(name, namespace, command, container, stderr, stdin, stdout, tty, progressListener, progressRequestListener);
          Type localVarReturnType = new TypeToken<String>(){}.getType();
          apiClient.executeAsync(call, localVarReturnType, callback);
          return call;
      }
docs: (asynchronously)
  connect POST requests to exec of Pod
  @param name name of the PodExecOptions (required)
  @param namespace object name and auth scope, such as for teams and projects (required)
  @param command Command is the remote command to execute. argv array. Not executed within a shell. (optional)
  @param container Container in which to execute the command. Defaults to only container if there is only one container in the pod. (optional)
  @param stderr Redirect the standard error stream of the pod for this call. Defaults to true. (optional)
  @param stdin Redirect the standard input stream of the pod for this call. Defaults to false. (optional)
  @param stdout Redirect the standard output stream of the pod for this call. Defaults to true. (optional)
  @param tty TTY if true indicates that a tty will be allocated for the exec call. Defaults to false. (optional)
  @param callback The callback to be executed when the API call finishes
  @return The request call
  @throws ApiException If fail to process the API call, e.g. serializing the request body object