in below swagger document , i put the header.ebmCID field to be required and it appears as required in swagger UI , but my problem is when i import the swagger file to intiate an API on APIC IBM APIC raises an error and can't see the field and raises an exception , so i have to delete the required field from the swagger and upload it again on APIC 
then i want to use a validate node and makes the same field required via the UI of APIC 
the validate node doesn't see it in the request i send via postman if i send the field **testRequest.header.ebmCID** in the request or not it raises a validation error via APIC 

swagger: "2.0"
info:
  description: "test API "
  version: "1.0.0"
  title: "test"
host: "api.example.com"
basePath: "/v1"
schemes:
  - "https"
paths:
  /test:
    post:
      summary: "testRequest"
      description: "testRequest"
      consumes:
        - "application/json"
      produces:
        - "application/json"
      parameters:
        - in: "body"
          name: "body"
          description: "test"
          required: true
          schema:
            $ref: "#/definitions/testRequest"
      responses:
        200:
          description: "Successful response"
          schema:
            $ref: "#/definitions/QueryParametersResponse"
        '500':
          description: internal server error
          schema:
           $ref: '#/definitions/FaultResponse'
        '404':
          description: not found
          schema:
           $ref: '#/definitions/NotFoundResponse'
        '501':
          description: Server Error Response
          schema:
           $ref: '#/definitions/ServerErrorResponse'
        '422':
          description: Server Error Response
          schema:
           $ref: '#/definitions/BusinessRuleViolationResponse'           
        '423':
          description: Server Error Response
          schema:
           $ref: '#/definitions/ValidationErrorResponse'  

definitions:
  testRequest:
    type: object
    properties:
      queryParamters:
        type: object
        properties:
          header:
            $ref: "#/definitions/header"
          body:
            $ref: "#/definitions/Body"
    required:
      - queryParamters
  header:
    type: object
    properties:
      ebmCID:
        type: string
      userID:
         type: string
    required:
      -  ebmCID