<?xml version="1.0" encoding="UTF-8"?>
<customers>
  <customer
    email="john@example.com"
    customer_group_code="wholesale"
    first_name="John"
    last_name="Doe"
    phone="9876543109"
    date_of_birth="1991-05-15"
    gender="Male"
  />
  <customer
    email="jane@example.com"
    customer_group_code="general"
    first_name="Jane"
    last_name="Smith"
    phone=""
    date_of_birth="1991-05-15"
    gender="Female"
  />
  <customer
    email="robert@example.com"
    customer_group_code="general"
    first_name="Robert"
    last_name="Johnson"
    phone=""
    date_of_birth="1990-11-26"
    gender="Male"
  />
</customers>
