# File lib/fog/identity/openstack/v3/models/os_credentials.rb, line 15
          def find_by_id(id)
            cached_credential = find { |credential| credential.id == id }
            return cached_credential if cached_credential
            credential_hash = service.get_os_credential(id).body['credential']
            Fog::Identity::OpenStack::V3::Credential.new(
              credential_hash.merge(:service => service)
            )
          end