merge new into master

node_modules/use-callback-ref/dist/es2019/mergeRef.d.ts

@@ -0,0 +1,16 @@
+import { MutableRefObject } from 'react';
+import { ReactRef } from './types';
+/**
+ * Merges two or more refs together providing a single interface to set their value
+ * @param {RefObject|Ref} refs
+ * @returns {MutableRefObject} - a new ref, which translates all changes to {refs}
+ *
+ * @see {@link useMergeRefs} to be used in ReactComponents
+ * @example
+ * const Component = React.forwardRef((props, ref) => {
+ *   const ownRef = useRef();
+ *   const domRef = mergeRefs([ref, ownRef]); // 👈 merge together
+ *   return <div ref={domRef}>...</div>
+ * }
+ */
+export declare function mergeRefs<T>(refs: ReactRef<T>[]): MutableRefObject<T | null>;