Changes to List simulation types

the data/items/type response's property type changed from string to no type for status 200

the error response's property type changed from object to no type for status default

removed the required property error/code from the response with the default status

removed the required property error/detail from the response with the default status

removed the required property error/documentation_url from the response with the default status

removed the required property error/type from the response with the default status

removed the optional property error/errors from the response with the default status

added the new api_key_exposure.created enum value to the data/items/events/items response property for the response status 200

added the new client_token.created enum value to the data/items/events/items response property for the response status 200

added the new client_token.revoked enum value to the data/items/events/items response property for the response status 200

added the new client_token.updated enum value to the data/items/events/items response property for the response status 200

added the new discount_group.created enum value to the data/items/events/items response property for the response status 200

added the new discount_group.updated enum value to the data/items/events/items response property for the response status 200

added ApiError to the error response property allOf list for the response status default

added SimulationKind to the data/items/type response property allOf list for the response status 200

the response property data/items/description became required for the status 200

the response property data/items/events became required for the status 200

the response property data/items/group became required for the status 200

the response property data/items/label became required for the status 200

the response property data/items/name became required for the status 200

the response property data/items/type became required for the status 200

the response property error became required for the status default

the response property meta became required for the status default

removed the scenario enum value from the data/items/type response property for the response status 200

removed the single_event enum value from the data/items/type response property for the response status 200

added the new api_key.created enum value to the data/items/events/items response property for the response status 200

added the new api_key.expired enum value to the data/items/events/items response property for the response status 200

added the new api_key.expiring enum value to the data/items/events/items response property for the response status 200

added the new api_key.revoked enum value to the data/items/events/items response property for the response status 200

added the new api_key.updated enum value to the data/items/events/items response property for the response status 200

added the new payment_method.deleted enum value to the data/items/events/items response property for the response status 200

added the new payment_method.saved enum value to the data/items/events/items response property for the response status 200

added the new transaction.revised enum value to the data/items/events/items response property for the response status 200

endpoint added