Changes to Get payment refund

added the new optional header request parameter X-Client-Signature

added the new optional header request parameter X-Client-Signed-At

the response optional property allOf[#/components/schemas/entity-refund-response]/externalReference became read-only for the status 200

the response property allOf[#/components/schemas/entity-refund-response]/description became nullable for the status 200

removed the required property _links from the response with the 200 status

removed the required property amount from the response with the 200 status

removed the required property createdAt from the response with the 200 status

removed the required property description from the response with the 200 status

removed the required property id from the response with the 200 status

removed the required property metadata from the response with the 200 status

removed the required property mode from the response with the 200 status

removed the required property paymentId from the response with the 200 status

removed the required property resource from the response with the 200 status

removed the required property status from the response with the 200 status

removed the optional property externalReference from the response with the 200 status

removed the optional property routingReversals from the response with the 200 status

removed the optional property settlementId from the response with the 200 status

added entity-refund-response to the response body allOf list for the response status 200

removed the optional write-only property reverseRouting from the response with the 200 status

removed the optional write-only property testmode from the response with the 200 status

the response property paymentId became required for the status 200

added the non-success response with the status 429

the endpoint scheme security advancedAccessToken was added to the API

the endpoint scheme security organizationAccessToken was removed from the API

response property settlementAmount deprecated

endpoint added