code: public static <K, V> MapEntryLite<K, V> newDefaultInstance(WireFormat.FieldType keyType, K defaultKey,
              WireFormat.FieldType valueType, V defaultValue) {
          return new MapEntryLite<K, V>(keyType, defaultKey, valueType, defaultValue);
      }
docs: Creates a default MapEntryLite message instance.
  
  This method is used by generated code to create the default instance for a map entry message. The created default
  instance should be used to create new map entry messages of the same type. For each map entry message, only one
  default instance should be created.
  
  @param <K> the key type
  @param <V> the value type
  @param keyType the key type
  @param defaultKey the default key
  @param valueType the value type
  @param defaultValue the default value
  @return the map entry lite