Changes to Read send status

the response property error/details became required for the status 400

the response property error/details became required for the status 401

the response property error/details became required for the status 403

the response property error/details became required for the status 404

the response property error/details became required for the status 429

the response property meta became required for the status 400

the response property meta became required for the status 401

the response property meta became required for the status 403

the response property meta became required for the status 404

the response property meta became required for the status 429

the response property meta/api_version became required for the status 400

the response property meta/api_version became required for the status 401

the response property meta/api_version became required for the status 403

the response property meta/api_version became required for the status 404

the response property meta/api_version became required for the status 429

added the required property meta/request_id to the response with the 400 status

added the required property meta/request_id to the response with the 401 status

added the required property meta/request_id to the response with the 403 status

added the required property meta/request_id to the response with the 404 status

added the required property meta/request_id to the response with the 429 status

the response property error/details became nullable for the status 400

the response property error/details became nullable for the status 401

the response property error/details became nullable for the status 403

the response property error/details became nullable for the status 404

the response property error/details became nullable for the status 429

added the new account_unavailable enum value to the data/recipients/items/suppressed_reason response property for the response status 200

added the new deferred enum value to the data/recipients/items/channel_outcomes/additionalProperties/outcome response property for the response status 200

added the new site_blocked enum value to the data/recipients/items/suppressed_reason response property for the response status 200

added the optional property data/recipients/items/channel_outcomes/additionalProperties/reason to the response with the 200 status

added the optional property data/recipients/items/channel_outcomes/additionalProperties/retry_at to the response with the 200 status

added the required property data/counts/deferred to the response with the 200 status

added the new recalled enum value to the data/recipients/items/state response property for the response status 200

removed the websocket enum value from the data/channels/items response property for the response status 200

added the required property data/counts/recalled to the response with the 200 status