Changes to Send a Whatsapp message

added the new optional header request parameter Idempotency-Key

added the non-success response with the status 409

added the non-success response with the status 413

added the non-success response with the status 503

added the new required request property whatsapp_message/contacts/items/name/formatted_name

added the new required request property whatsapp_message/interactive/header/type

the whatsapp_message/contacts/items/name request property type changed from string to object

added the new optional request property whatsapp_message/contacts/items/name/first_name

added the new optional request property whatsapp_message/contacts/items/name/last_name

added the new optional request property whatsapp_message/contacts/items/name/middle_name

added the new optional request property whatsapp_message/contacts/items/name/prefix

added the new optional request property whatsapp_message/contacts/items/name/suffix

added the new optional request property whatsapp_message/interactive/action/parameters/flow_action

added the new optional request property whatsapp_message/interactive/action/parameters/flow_action_payload

added the new optional request property whatsapp_message/interactive/action/parameters/flow_cta

added the new optional request property whatsapp_message/interactive/action/parameters/flow_id

added the new optional request property whatsapp_message/interactive/action/parameters/flow_message_version

added the new optional request property whatsapp_message/interactive/action/parameters/flow_name

added the new optional request property whatsapp_message/interactive/action/parameters/flow_token

added the new optional request property whatsapp_message/interactive/action/parameters/mode

added the new optional request property whatsapp_message/template/components/items/parameters/items/action

added the new action enum value to the request property whatsapp_message/template/components/items/parameters/items/type

added the new flow enum value to the request property whatsapp_message/interactive/type

added the new flow enum value to the request property whatsapp_message/template/components/items/sub_type

the response's body type changed from object to no type for status 4XX

the errors/items response's property type changed from object to no type for status 4XX

the errors/items/code response's property type changed from integer to string, and format from int32 to no format for status 4XX

the response's body type changed from no type to object for status 4XX

the errors/items response's property type changed from no type to object for status 4XX

the errors/items/code response's property type changed from string to integer, and format from no format to int32 for status 4XX

the errors/items/source/pointer response's property format changed from json-pointer to no format for status 4XX