type: object
required:
  - email
  - first_name
  - last_name
  - password
properties:
  email:
    type: string
    description: The customer's email.
    format: email
  first_name:
    type: string
    description: The customer's first name.
  last_name:
    type: string
    description: The customer's last name.
  password:
    type: string
    description: The customer's password.
    format: password
  phone:
    type: string
    description: The customer's phone number.
  metadata:
    description: An optional set of key-value pairs to hold additional information.
    type: object