periods

Property Name	Type	Required	Description
`currency`	string	Required	Currency code (ISO 4217). See Currency codes.
`trial-period`	container	Required	Container of trial-period properties.
`initial-period`	container	Required	Container of initial-period properties.
`recurring-period`	container	Required	Container of recurring-period properties.

Property Name	Type	Description
`currency`	string	Currency code (ISO 4217). See Currency codes.
`trial-period`	container	Container of trial-period properties.
`initial-period`	container	Container of initial-period properties.
`recurring-period`	container	Container of recurring-period properties.