code: public java.util.List<CharacterSet> getSupportedCharacterSets() {
          if (supportedCharacterSets == null) {
              supportedCharacterSets = new com.amazonaws.internal.SdkInternalList<CharacterSet>();
          }
          return supportedCharacterSets;
      }
docs: <p>
  A list of the character sets supported by this engine for the <code>CharacterSetName</code> parameter of the
  <code>CreateDBInstance</code> action.
  </p>
  
  @return A list of the character sets supported by this engine for the <code>CharacterSetName</code> parameter of
  the <code>CreateDBInstance</code> action.