WIP - add extractor, generate snippet_data

node_modules/graphql/jsutils/isPromise.mjs

@@ -0,0 +1,8 @@
+/**
+ * Returns true if the value acts like a Promise, i.e. has a "then" function,
+ * otherwise returns false.
+ */
+// eslint-disable-next-line no-redeclare
+export default function isPromise(value) {
+  return Boolean(value && typeof value.then === 'function');
+}