/**
 * Each webhook can subscribe to one or more of the following triggers:
 * - `UNSPECIFIED_TRIGGER`: Using this value will cause errors.
 * - `MESSAGE_DELIVERY`: Subscribe to delivery receipts for a message sent.
 * - `EVENT_DELIVERY`: Subscribe to delivery receipts for a event sent.
 * - `MESSAGE_INBOUND`: Subscribe to inbound messages from end users on the underlying channels.
 * - `EVENT_INBOUND`: Subscribe to inbound events from end users on the underlying channels.
 * - `CONVERSATION_START`: Subscribe to an event that is triggered when a new conversation has been started.
 * - `CONVERSATION_STOP`: Subscribe to an event that is triggered when a active conversation has been stopped.
 * - `CONTACT_CREATE`: Subscribe to an event that is triggered when a new contact has been created.
 * - `CONTACT_DELETE`: Subscribe to an event that is triggered when a contact has been deleted.
 * - `CONTACT_MERGE`: Subscribe to an event that is triggered when two contacts are merged.
 * - `CONTACT_UPDATE`: Subscribe to an event that is triggered when a contact is updated.
 * - `UNSUPPORTED`: Subscribe to callbacks that are not natively supported by the Conversation API.
 * - `OPT_IN`: Subscribe to opt_ins.
 * - `OPT_OUT`: Subscribe to opt_outs.
 * - `CAPABILITY`: Subscribe to see get capability results.
 * - `CHANNEL_EVENT`: Subscribe to channel event notifications.
 * - `CONVERSATION_DELETE`: Subscribe to get an event when a conversation is deleted.
 * - `CONTACT_IDENTITIES_DUPLICATION`: Subscribe to get an event when contact identity duplications are found during message or event processing.
 * - `SMART_CONVERSATIONS`: Subscribe to smart conversations callback
 */
export type WebhookTrigger = 'UNSPECIFIED_TRIGGER' | 'MESSAGE_DELIVERY' | 'MESSAGE_SUBMIT' | 'MESSAGE_INBOUND' | 'EVENT_DELIVERY' | 'EVENT_INBOUND' | 'SMART_CONVERSATIONS' | 'MESSAGE_INBOUND_SMART_CONVERSATION_REDACTION' | 'CONVERSATION_START' | 'CONVERSATION_STOP' | 'CONVERSATION_DELETE' | 'CONTACT_CREATE' | 'CONTACT_DELETE' | 'CONTACT_MERGE' | 'CONTACT_UPDATE' | 'CONTACT_IDENTITIES_DUPLICATION' | 'UNSUPPORTED' | 'OPT_IN' | 'OPT_OUT' | 'CHANNEL_EVENT' | 'CAPABILITY' | 'RECORD_NOTIFICATION';