code: public boolean containsKey(ResourceType type, String poolGroupName) {
      Map<String, V> poolGroupNameMap = typePoolGroupNameMap.get(type);
      if (poolGroupNameMap == null) {
        return false;
      }
      return poolGroupNameMap.containsKey(poolGroupName);
    }
docs: Is the value set with the appropriate keys?
  
  @param type Resource type
  @param poolGroup Name of pool group
  @return True if this map contains a mapping for the specified key, false
  otherwise