Why do I have to call .as_json twice to get a proper representation

Hi! I'm trying to use my entity to ensure the returned data in the API matches what my Entity should be exposing in a RSpec request spec in my rails application.

I'm doing this:

it 'returns the change events for the incident as json' do
  authed_get "/v1/incidents/#{incident.id}/related_change_events"

  expect(parsed['data']).to match_array(PublicAPI::V1::Incidents::RelatedChangeEventEntity.represent(related_change_events).as_json.as_json)
end

This makes my test pass, but why do I have to call #as_json twice? This feels weird to me and I don't see a method on the Grape::Entity class that gives me what I want. More of a question than a bug but I see room for improvement here.

Thanks!

The issue names Grape::Entity, represent, and the RSpec request-spec call chain, but no repository files or tests. Start by reproducing the reported behavior around RelatedChangeEventEntity.represent(...).as_json.as_json and inspect Grape::Entity's representation methods. Done means establishing whether a supported single-call representation is possible and documenting or scoping the required improvement.