Changes to List dashboards

the response property items/createdAt became nullable for the status 200

the response property items/createdBy became nullable for the status 200

the response property items/updatedAt became nullable for the status 200

the response property items/updatedBy became nullable for the status 200

the response property items/version became nullable for the status 200

the response property items/createdAt became optional for the status 200

the response property items/createdBy became optional for the status 200

the response property items/updatedAt became optional for the status 200

the response property items/updatedBy became optional for the status 200

the response property items/version became optional for the status 200

added the optional property items/labelNames to the response with the 200 status

added the optional property items/updatedByAgent to the response with the 200 status

added the required property items/type to the response with the 200 status

added the new optional query request parameter exclude

added the new optional query request parameter labelIds

added the non-success response with the status 400

added the optional property items/labels to the response with the 200 status

added the required property items/labelIds to the response with the 200 status