Changes to Get entity integration mappings

added the new subscription_line_item enum value to the items/items/entity_type response property for the response status 200

added the new invoice_line_item enum value to the items/items/entity_type response property for the response status 200

added the new not_implemented enum value to the code response property for the response status 400

added the new not_implemented enum value to the code response property for the response status 500

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

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

the pagination response's property type changed from no type to object for status 200

added the new addon enum value to the items/items/entity_type response property for the response status 200

added the new archived enum value to the items/items/status response property for the response status 200

added the new credit_note enum value to the items/items/entity_type response property for the response status 200

added the new customer enum value to the items/items/entity_type response property for the response status 200

added the new deleted enum value to the items/items/status response property for the response status 200

added the new invoice enum value to the items/items/entity_type response property for the response status 200

added the new item enum value to the items/items/entity_type response property for the response status 200

added the new item_price enum value to the items/items/entity_type response property for the response status 200

added the new payment enum value to the items/items/entity_type response property for the response status 200

added the new plan enum value to the items/items/entity_type response property for the response status 200

added the new price enum value to the items/items/entity_type response property for the response status 200

added the new published enum value to the items/items/status response property for the response status 200

added the new subscription enum value to the items/items/entity_type response property for the response status 200

added the optional property pagination/limit to the response with the 200 status

added the optional property pagination/offset to the response with the 200 status

added the optional property pagination/total to the response with the 200 status

the items/items/created_at response's property format changed from date-time to no format for status 200

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

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

the items/items/updated_at response's property format changed from date-time to no format for status 200

the pagination response's property type changed from object to no type for status 200

removed the optional property pagination/limit from the response with the 200 status

removed the optional property pagination/offset from the response with the 200 status

removed the optional property pagination/total from the response with the 200 status

removed the addon enum value from the items/items/entity_type response property for the response status 200

removed the archived enum value from the items/items/status response property for the response status 200

removed the credit_note enum value from the items/items/entity_type response property for the response status 200

removed the customer enum value from the items/items/entity_type response property for the response status 200

removed the deleted enum value from the items/items/status response property for the response status 200

removed the invoice enum value from the items/items/entity_type response property for the response status 200

removed the item enum value from the items/items/entity_type response property for the response status 200

removed the item_price enum value from the items/items/entity_type response property for the response status 200

removed the payment enum value from the items/items/entity_type response property for the response status 200

removed the plan enum value from the items/items/entity_type response property for the response status 200

removed the price enum value from the items/items/entity_type response property for the response status 200

removed the published enum value from the items/items/status response property for the response status 200

removed the subscription enum value from the items/items/entity_type response property for the response status 200

endpoint added