#import calery


def send_proforma_to_seller(order_id):
    print("Sending proforma to seller")


def send_proforma_to_buyer(order_id):
    print("Sending proforma to buyer")


def send_invoice_to_seller(order_id):
    print("Sending invoice to seller")


def send_invoice_to_buyer(order_id):
    print("Sending invoice to buyer")
