Billing constructor

Billing({ String? firstName, String? lastName, String? company, String? address1, String? address2, String? city, String? state, String? postcode, String? country, String? email, String? phone, })

Implementation

Billing(
    {this.firstName,
    this.lastName,
    this.company,
    this.address1,
    this.address2,
    this.city,
    this.state,
    this.postcode,
    this.country,
    this.email,
    this.phone});