Updates one or more keys in the project. Requires Manage keys admin right.

Ad hoc documents projects (paged_documents) only allow updating <code>tags</code> (with <code>merge_tags</code>), <code>description</code>, <code>is_hidden</code>, <code>char_limit</code> and <code>custom_attributes</code> per key; any other property is rejected for that key in the response <code>errors</code> array (the request still returns <code>200</code>).

Requires <code>write_keys</code> OAuth access scope.

{
  "keys": [
    {
      "translations": [
        {
          "translation": "single-value"
        }
      ]
    }
  ]
}