AuthenticateRequest:
  type: object  
  properties:
    username:
      type: string
    password:
      type: string
      format: MD5 encrypted
  required:
  - password
  - username
  
AuthenticateResponse:
  type: array
  items:
    type: object
    properties:
      token: 
        type: string
        description: The access token to be used as Bearer Authentication header
      merchant: 
        $ref: '#/components/schemas/Merchant'
      employee:
        $ref: '#/components/schemas/Employee'
    required:
    - token