chore: Limit objects returned by conversation API (#2721)

spec/models/concerns/access_tokenable_shared.rb

@@ -0,0 +1,9 @@
+require 'rails_helper'
+
+shared_examples_for 'access_tokenable' do
+  let(:obj) { create(described_class.to_s.underscore) }
+
+  it 'creates access token on create' do
+    expect(obj.access_token).not_to eq(nil)
+  end
+end