diff --git a/doc/base/classes.xml b/doc/base/classes.xml
index b773d85b02f..e687fb5ccf8 100644
--- a/doc/base/classes.xml
+++ b/doc/base/classes.xml
@@ -37268,6 +37268,13 @@ This method controls whether the position between two cached points is interpola
Return true if the strings begins with the given string.
+
+
+
+
+ Return the bigrams (pairs of consecutive letters) of this string.
+
+
@@ -37627,6 +37634,15 @@ This method controls whether the position between two cached points is interpola
+
+
+
+
+
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+ Return the similarity index of the text compared to this string. 1 means totally similar and 0 means totally dissimilar.
+
+