code: func newFieldType() *FieldType {
  	return &FieldType{
  		_tokenized:           true,
  		_indexOptions:        model.INDEX_OPT_DOCS_AND_FREQS_AND_POSITIONS,
  		numericPrecisionStep: util.NUMERIC_PRECISION_STEP_DEFAULT,
  	}
  }
docs: // Create a new FieldType with default properties.