notifications-api/app/billing/billing_schemas.py

from datetime import datetime

create_or_update_free_sms_fragment_limit_schema = {
    "$schema": "http://json-schema.org/draft-04/schema#",
    "description": "POST annual billing schema",
    "type": "object",
    "title": "Create",
    "properties": {
        "free_sms_fragment_limit": {"type": "integer", "minimum": 1},
    },
    "required": ["free_sms_fragment_limit"]
}


def serialize_ft_billing_remove_emails(data):
    results = []
    billed_notifications = [x for x in data if x.notification_type != 'email']
    for notifications in billed_notifications:
        json_result = {
            "month": (datetime.strftime(notifications.month, "%B")),
            "notification_type": notifications.notification_type,
            "billing_units": int(notifications.billable_units),
            "rate": float(notifications.rate),
        }
        results.append(json_result)
    return results