Shared Authorizer in httpApi

Hi,
I have default service and I defined custom authorizer with in that service

service: default-service
  httpApi:
    authorizers:
      authorizer:
        type: request
        functionName: authorizer
        identitySource: $request.header.Authorization
        enableSimpleResponses: true
      tenantAuthorizer:
        type: request
        functionName: tenantAuthorizer
        identitySource: $request.header.Tenantid
        enableSimpleResponses: true
    cors:
      allowedOrigins:
        - http://localhost:4200
      allowedHeaders:
        - Content-Type
        - Authorization
        - Tenantid
functions:
  apigateway:
    handler: index.handler
    events:
      - httpApi: "*"
  authorizer:
    handler: src/authorizer.handler

  tenantAuthorizer:
    handler: src/tenantAuthorizer.handler

I would like to refer these authorisers in the other service

tenantCreate:
  handler: src/handler.create
  events:
    - httpApi:
        path: /tenants
        method: post
        authorizer:
          type: request
          id:
            Ref: tenantAuthorizer

I also tried hardcoded id instead of tenantAuthorizer. but I got cloud formation error.
Please help me to achive shared authoriser?