docs: func (c *ApiGatewayV2) UpdateApiMappingRequest(input *UpdateApiMappingInput) (req *request.Request, output *UpdateApiMappingOutput) {
  	op := &request.Operation{
  		Name:       opUpdateApiMapping,
  		HTTPMethod: "PATCH",
  		HTTPPath:   "/v2/domainnames/{domainName}/apimappings/{apiMappingId}",
  	}
  
  	if input == nil {
  		input = &UpdateApiMappingInput{}
  	}
  
  	output = &UpdateApiMappingOutput{}
  	req = c.newRequest(op, input, output)
  	return
  }