Add anchorClassName to ToolTip TS definition

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 - Added support to `findTestSubject` for an optional `matcher` argument, which defaults to `~=`, enabling it to identify an element based on one of multiple space-separated values within its `data-test-subj` attribute ([#1587](https://github.com/elastic/eui/pull/1587))
 - Converted `EuiFlexGrid`, `EuiFlexGroup`, `EuiFlexItem`, `EuiDescriptionList`, `EuiDescriptionListTitle`, and `EuiDescriptionListDescription` to TypeScript ([#1365](https://github.com/elastic/eui/pull/1365))
+- Added missing `anchorClassName` prop to `EuiToolTip` definition ([#1657](https://github.com/elastic/eui/pull/1657))
 
 ## [`9.0.1`](https://github.com/elastic/eui/tree/v9.0.1)
 

src/components/tool_tip/index.d.ts

@@ -14,6 +14,7 @@ declare module '@elastic/eui' {
     | 'long';
 
   export interface EuiToolTipProps {
+    anchorClassName?: string;
     children: ReactElement<any>;
     className?: string;
     content?: ReactNode;

src/components/tool_tip/tool_tip.js

@@ -273,6 +273,11 @@ EuiToolTip.propTypes = {
    */
   className: PropTypes.string,
 
+  /**
+   * Passes onto the the trigger.
+   */
+  anchorClassName: PropTypes.string,
+
   /**
    * Unless you provide one, this will be randomly generated.
    */