+ * @brief Retrieves the number of character-spacing glyph runs.
+ *
+ * @return The number of character-spacing glyph runs.
+ */
+ virtual Length GetNumberOfCharacterSpacingGlyphRuns() const = 0;
+
+ /**
+ * @brief Retrieves the reference for character-spacing glyph runs.
+ *
+ * @return The reference for character-spacing glyph runs.
+ */
+ virtual const Vector<CharacterSpacingGlyphRun>& GetCharacterSpacingGlyphRuns() const = 0;
+
+ /**