Get a plan by plan id.
The Circle .
The internal (unlocalized) name of the plan.
Whether this plan is the default plan. Only one plan can be default.
Wether this plan is available to create a subscription.
An object where the keys are LocaleLocale - Locale is how the API represents the language and country for an Account. It is comprised of the ISO_639-1 alpha 2 language code with a dash (-) then the ISO 3166-1 alpha-2 country code. If the country is unknown, the dash (-) and country code may be omitted. The Account Locale is also used to determine the default country and currency for Circle Safe. Examples: en-US (English in the United States) en-CA (English in Canada), de-DE (German in Germany), de-CH (Swiss German), it-IT (Italian in Italy), es-ES (Spanish in Spain), es-MX (Spanish in Mexico), en (English, country unknown), fr (French, country unknown), es (Spanish, country unknown) and the value is a user visible localized name of the plan.