code: public DescribeDirectoryConfigsResult withDirectoryConfigs(DirectoryConfig... directoryConfigs) {
          if (this.directoryConfigs == null) {
              setDirectoryConfigs(new java.util.ArrayList<DirectoryConfig>(directoryConfigs.length));
          }
          for (DirectoryConfig ele : directoryConfigs) {
              this.directoryConfigs.add(ele);
          }
          return this;
      }
docs: <p>
  Information about the directory configurations. Note that although the response syntax in this topic includes the
  account password, this password is not returned in the actual response.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setDirectoryConfigs(java.util.Collection)} or {@link #withDirectoryConfigs(java.util.Collection)} if you
  want to override the existing values.
  </p>
  
  @param directoryConfigs
  Information about the directory configurations. Note that although the response syntax in this topic
  includes the account password, this password is not returned in the actual response.
  @return Returns a reference to this object so that method calls can be chained together.