parameters getting lost while proxy creation

[#1]

I created an API proxy from Open API doc as below -

'/users/{user_ids}':
    get:
      tags:
        - onboarding
      summary: >-
        Verify if a user exists either in context to the mobile platform, the
        HRMS or the CHMS.
      description: >-
        This operation checks if the user exists in each of the end systems and
        accordingly responds with the enumerated key in it's response. The
        chronological order of it's check is first Mobile Platform, then HRMS
        and then CHMS.
      operationId: fetchUsers
      produces:
        - application/json
      parameters:
        - name: user_ids
          type: string
          in: path
          description: >-
            Required. Comma separated string of user identifiers with a limit of
            20 ids.
          required: true
      responses:
        '200':
          description: Successfully fetched username.
          schema:
            $ref: '#/definitions/FetchUsersResponse'

When i try to generate the Open API doc from the API proxy using the apigee2openapi tool, the 'parameters' tag was missing in the generated document as below -

"/users/*": {
      "get": {
        "operationId": "fetchUsers",
        "summary": "Verify if a user exists either in context to the mobile platform, the HRMS or the CHMS.",
        "responses": {
          "200": {
            "description": "successful operation"
          }
        }
      }
    }

Please help me in resolving this.

[DChiesa]

I think you are trying to "round trip" between the spec and the API Proxy, and that's not supported by the apigee2openapi tool.

[#3]

Actually my point is when i generate open API spec through the apigee2openapi tool, i do not get the parmaters tag. I tried with the petstore example also that is used to explain the tool.

In the generated spec from the proxy, they have shown the parameter tag but that does not happen when i generated the spec using the tool.

I just want to ask how to make sure that 'parameters' tag is available in the generated spec.