chore: keep the old parsers around for reference temporarily

_lib/Import.js

@@ -0,0 +1,19 @@
+const PostCssRule = require('postcss/lib/at-rule');
+const stringify = require('./less-stringify');
+
+module.exports = class Import extends PostCssRule {
+  constructor (defaults) {
+    super(defaults);
+    this.type = 'import';
+  }
+
+  toString (stringifier) {
+    if (!stringifier) {
+      stringifier = {
+        stringify
+      };
+    }
+
+    return super.toString(stringifier);
+  }
+};