Purchase

Fields

Field	Type	Required	Description
`plan`	Optional[models.Plan]	➖	N/A
`plan_id`	str	✔️	The unique identifier of the purchased plan.
`expires_at`	Nullable[float]	✔️	Timestamp when the purchase expires, or null for lifetime access.
`started_at`	float	✔️	Timestamp when the purchase was made.
`quantity`	float	✔️	Number of units purchased.