Range.normalize_field_types method. Changes field type values [FieldChar.field_type](../../../aspose.words.fields/fieldchar/field_type/) of [FieldStart](../../../aspose.words.fields/fieldstart/), [FieldSeparator](../../../aspose.words.fields/fieldseparator/), [FieldEnd](../../../aspose.words.fields/fieldend/) in this range so that they correspond to the field types contained in the field codes.... insert_field ( field_code = 'DATE'...) # Manually change the raw text of the field, which determines...