input: Write a python function to create a Customer object and return its details.
  assert create_customer('John Doe', 30, '123 Main St') == 'Name: John Doe | Age: 30 | Address: 123 Main St'
  assert create_customer('Jane Smith', 25, '456 Elm St') == 'Name: Jane Smith | Age: 25 | Address: 456 Elm St'
  assert create_customer('Emily Davis', 40, '789 Oak St') == 'Name: Emily Davis | Age: 40 | Address: 789 Oak St'
output: def create_customer(name, age, address):
      return f'Name: {name} | Age: {age} | Address: {address}'