Nikolay Shapovalov
--- a/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
+++ b/core/modules/views/src/Plugin/views/field/FieldPluginBase.php
+   *     ],
+   *   ];
   *
   * Would yield the following array of tokens:
-   *   array(
-   *     '{{ arguments.foo.a }}' => 'value',
-   *     '{{ arguments.foo.b }}' => 'value',
-   *     '{{ arguments.bar.a }}' => 'value',
-   *     '{{ arguments.bar.b.c }}' => 'value',
-   *   );
+   *   [
+   *     '%foo_a' => 'value'
+   *     '%foo_b' => 'value'
+   *     '%bar_a' => 'value'
+   *     '%bar_b_c' => 'value'
+   *   ];