from types import SimpleNamespace

order_keys = SimpleNamespace()
order_keys.meta_data = "meta_data"
order_keys.line_items = "line_items"

order_keys.line_item_keys = SimpleNamespace()
order_keys.line_item_keys.sku = "sku"

custom_meta_data_keys = SimpleNamespace()
custom_meta_data_keys.is_settled_with_um = "is_settled_with_um"
custom_meta_data_keys.sats_received = "sats_received"