update FormField docstring
@@ -248,6 +248,8 @@ class FormField(object):
analyzed from a custom model that was trained with labels.
:ivar value:
The value for the recognized field. Its semantic data type is described by `value_type`.
+ If the value is extracted from the form, but cannot be normalized to its type,
+ then access the `value_data.text` property for a textual representation of the value.
:vartype value: str, int, float, :class:`~datetime.date`, :class:`~datetime.time`,
dict[str, :class:`~azure.ai.formrecognizer.FormField`], or list[:class:`~azure.ai.formrecognizer.FormField`]
:ivar float confidence:
