find

# File activerecord/lib/active_record/fixtures.rb, line 832
    def find
      raise FixtureClassNotFound, "No class attached to find." unless model_class
      object = model_class.unscoped do
        pk_clauses = fixture.slice(*Array(model_class.primary_key))
        model_class.find_by!(pk_clauses)
      end
      # Fixtures can't be eagerly loaded
      object.instance_variable_set(:@strict_loading, false)
      object
    end