anchor.diff:  Backfill entities registered in Styx and check detailed status of each single
   Workflow Instance belonging to a Backfill entity.
   
  -## Backfills [/v2/backfills{?component,workflow,status,showAll}]
  +## Backfills [/{version}/backfills{?component,workflow,status,showAll}]
  +
  ++ Parameters
  +    + version: `v3` (enum[string]) - API version
  +        + Members
  +            + `v2`
  +            + `v3`
   
   ### Get Backfills [GET]
   
  
positive.code:             }]
          }
  
  ## Workflow state [/v2/workflows/{component_id}/{workflow_id}/state]
  
  + Parameters
      + component_id: `styx-canary` (string) - Workflow Component
      + workflow_id: `StyxCanary` (string) - Workflow ID
  
  
negative.code: [dredd]: https://github.com/apiaryio/dredd
  [aglio]: https://github.com/danielgtaylor/aglio
  
  ## Authentication
  
  Starting from V3, any request except `GET` requires Google Authentication.
  
  HTTP header `Authorization: Bearer <id_token>` with a valid Google ID token is required
  in those requests.
  
  To know more details, please check
  [Google documentation](https://developers.google.com/identity/sign-in/web/backend-auth).
  
  # Group Workflows
  
  Resources related to the Workflows registered in Styx.
  
  ## Workflow [/{version}/workflows/{component_id}/{workflow_id}]
  
  + Parameters
      + component_id: `styx-canary` (string) - Workflow Component
      + workflow_id: `StyxCanary` (string) - Workflow ID
  
  ### Get Workflow [GET]
  
  + Parameters
      + version: `v3` (enum[string]) - API version
          + Members
              + `v2`
              + `v3`
  
  + Response 200 (application/json)
  
  