## visit_field_start(field_start) {#fieldstart} Called when a field starts in the document. ```python def visit_field_start(self, field_start: Aspose.words.fields.FieldStart): ... ``` | Parameter |......visit_field_start(self, field_start: aspose.words.fields.FieldStart): ...field_start | [FieldStart](../../..aspose.words.fields/fieldstart/) |...