val text_tag_param :
[< `ACCUMULATIVE_MARGIN of bool| `BACKGROUND of string| `BACKGROUND_FULL_HEIGHT of bool| `BACKGROUND_FULL_HEIGHT_SET of bool| `BACKGROUND_GDK of Gdk.color| `BACKGROUND_RGBA of Gdk.rgba| `BACKGROUND_SET of bool| `DIRECTION of GtkEnums.text_direction| `EDITABLE of bool| `EDITABLE_SET of bool| `FALLBACK of bool| `FALLBACK_SET of bool| `FAMILY of string| `FAMILY_SET of bool| `FONT of string| `FONT_DESC of Pango.font_description| `FONT_FEATURES of string| `FONT_FEATURES_SET of bool| `FOREGROUND of string| `FOREGROUND_GDK of Gdk.color| `FOREGROUND_RGBA of Gdk.rgba| `FOREGROUND_SET of bool| `INDENT of int| `INDENT_SET of bool| `INVISIBLE of bool| `INVISIBLE_SET of bool| `JUSTIFICATION of GtkEnums.justification| `JUSTIFICATION_SET of bool| `LANGUAGE of string| `LANGUAGE_SET of bool| `LEFT_MARGIN of int| `LEFT_MARGIN_SET of bool| `LETTER_SPACING of int| `LETTER_SPACING_SET of bool| `PARAGRAPH_BACKGROUND of string| `PARAGRAPH_BACKGROUND_GDK of Gdk.color| `PARAGRAPH_BACKGROUND_RGBA of Gdk.rgba| `PARAGRAPH_BACKGROUND_SET of bool| `PIXELS_ABOVE_LINES of int| `PIXELS_ABOVE_LINES_SET of bool| `PIXELS_BELOW_LINES of int| `PIXELS_BELOW_LINES_SET of bool| `PIXELS_INSIDE_WRAP of int| `PIXELS_INSIDE_WRAP_SET of bool| `RIGHT_MARGIN of int| `RIGHT_MARGIN_SET of bool| `RISE of int| `RISE_SET of bool| `SCALE of float| `SCALE_SET of bool| `SIZE of int| `SIZE_POINTS of float| `SIZE_SET of bool| `STRETCH of PangoEnums.stretch| `STRETCH_SET of bool| `STRIKETHROUGH of bool| `STRIKETHROUGH_RGBA of Gdk.rgba| `STRIKETHROUGH_SET of bool| `STYLE of PangoEnums.style| `STYLE_SET of bool| `TABS_SET of bool| `UNDERLINE of PangoEnums.underline| `UNDERLINE_RGBA of Gdk.rgba| `UNDERLINE_RGBA_SET of bool| `UNDERLINE_SET of bool| `VARIANT of PangoEnums.variant| `VARIANT_SET of bool| `WEIGHT of int| `WEIGHT_SET of bool| `WRAP_MODE of GtkEnums.wrap_mode| `WRAP_MODE_SET of bool ]->[> `texttag ]Gobject.param