2.1.0

Added

• Adds the key subscription_group_state for setting the subscribed/unsubscribed status when using braze_subscription_groups in the Identify call.
  • Use this value instead of subscription_state_id.
• Adds support for nested custom attributes.
  • If the object sent through Segment's Identify call has values that are of type [String: Any?], those values will be sent to Braze as a nested custom attribute.
  • If the object sent through Segment's Identify call contains an array, the values of that array will be converted to strings, and the array will be reported to Braze as an array of strings.