| Value | Meaning | 
|---|---|
| Character0 | Use the boundary between characters (including non-printing characters) | 
| Word1 | Use the boundary between words, starting from the beginning of the current word and ending at the beginning of the next word | 
| Sentence2 | Use the boundary between sentences, starting from the beginning of the current sentence and ending at the beginning of the next sentence | 
| Line3 | Use the boundary between lines, starting from the beginning of the current line and ending at the beginning of the next line | 
| Paragraph4 | Use the boundary between paragraphs, starting from the beginning of the current paragraph and ending at the beginning of the next paragraph | 
The granularity for queries about the text contents of a gtk.accessible_text.AccessibleText implementation.