fields property
The NamedStyle fields that should be updated.
At least named_style_type must be specified. The root named_style is
implied and should not be specified. A single "*" can be used as
short-hand for listing every field. For example, to update the text style
to bold, set fields to include "text_style" and "text_style.bold".
To update the paragraph style's alignment property, set fields to
include "paragraph_style" and "paragraph_style.alignment". To reset a
property to its default value, include its field name in the field mask
but leave the field itself unset. Specifying "text_style" or
"paragraph_style" with an empty TextStyle or ParagraphStyle will reset
all of its nested fields.
Implementation
core.String? fields;