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mc_test/node_modules/@emotion/weak-memoize/README.md

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+# @emotion/weak-memoize
+
+> A memoization function that uses a WeakMap
+
+## Install
+
+```bash
+yarn add @emotion/weak-memoize
+```
+
+## Usage
+
+Because @emotion/weak-memoize uses a WeakMap the argument must be a non primitive type, e.g. objects, functions, arrays and etc. The function passed to `weakMemoize` must also only accept a single argument.
+
+```jsx
+import weakMemoize from '@emotion/weak-memoize'
+
+let doThing = weakMemoize(({ someProperty }) => {
+  return { newName: someProperty }
+})
+
+let obj = { someProperty: true }
+
+let firstResult = doThing(obj)
+
+let secondResult = doThing(obj)
+
+firstResult === secondResult // true
+
+let newObj = { someProperty: true }
+
+let thirdResult = doThing(newObj)
+
+thirdResult === firstResult // false
+```