chromium/third_party/blink/web_tests/external/wpt/fedcm/support/manifest_with_single_account.json

{
  "accounts_endpoint": "single_account.py",
  "client_metadata_endpoint": "client_metadata.py",
  "id_assertion_endpoint": "token_with_account_id.py",
  "login_url": "login.html"
}