For the eval_orchestration method, there is no method call but in the rails server this method is being hitted. Where the method call is happening?

module Va::OrchestrationNode
  include Va::OrchestrationConstants
  include Workflow::FunctionalDataUtil
  include Va::Util
  include Marketplace::ApiActions
  include Metering::Helper
  include Workflow::FunctionalNodesUtil
  include Workflow::OsrCommonMethods

  def eval_orchestration(node, evaluate_on)
   ######statements#
  end
end

While running the server there is no call to the above method but in server it is hitting the lines in the eval_orcheatration method. It will be helpful for me if someone explains what is going on here?