CheckProperties

Fields

Field	Type	Required	Description
`is_free`	bool	✔️	True if the product has no base price or usage prices
`is_one_off`	bool	✔️	True if the product only contains a one-time price
`interval_group`	OptionalNullable[str]	➖	The billing interval group for recurring products (e.g., 'monthly', 'yearly')
`has_trial`	OptionalNullable[bool]	➖	True if the product includes a free trial
`updateable`	OptionalNullable[bool]	➖	True if the product can be updated after creation (only applicable if there are prepaid recurring prices)