code: public java.util.List<String> getFamilies() {
          if (families == null) {
              families = new com.amazonaws.internal.SdkInternalList<String>();
          }
          return families;
      }
docs: <p>
  The list of task definition family names that match the <code>ListTaskDefinitionFamilies</code> request.
  </p>
  
  @return The list of task definition family names that match the <code>ListTaskDefinitionFamilies</code> request.