Is there a way to set variable from dialogFlow to Instant Apps

Content

HI,

I am trying to send a variable from dialogFlow to InstantApp but I haven't any data 

Please can some one help me with the code, documentation link  , any info 

Thank you

 

 

Code Snippet

 start:
    component: "ts.Insurance.BotComponent"
    properties:
      Code: "${Code.value}"  
      Body1: "${Body1.value}" 
      Body2: "${Body2.value}"
      Body3: "Body3" 
      Body: "Body"
      
   message1:
    component: "System.Output"
    properties:
      text: "${Body.value.Preneur.conducteurA.name}"
    
        
  SetCode:
     component: "System.SetVariable"
     properties: