Move internal modules to “internal” folder.

.internal/baseWrapperValue.js

@@ -0,0 +1,23 @@
+import LazyWrapper from './.internal/LazyWrapper.js';
+import arrayPush from './.internal/arrayPush.js';
+import arrayReduce from './.internal/arrayReduce.js';
+
+/**
+ * The base implementation of `wrapperValue` which returns the result of
+ * performing a sequence of actions on the unwrapped `value`, where each
+ * successive action is supplied the return value of the previous.
+ *
+ * @private
+ * @param {*} value The unwrapped value.
+ * @param {Array} actions Actions to perform to resolve the unwrapped value.
+ * @returns {*} Returns the resolved value.
+ */
+function baseWrapperValue(value, actions) {
+  let result = value;
+  if (result instanceof LazyWrapper) {
+    result = result.value();
+  }
+  return arrayReduce(actions, (result, { func, thisArg, args }) => func.apply(thisArg, arrayPush([result], args)), result);
+}
+
+export default baseWrapperValue;