docs: func (c *ApiGatewayV2) GetApiMappingRequest(input *GetApiMappingInput) (req *request.Request, output *GetApiMappingOutput) {
  	op := &request.Operation{
  		Name:       opGetApiMapping,
  		HTTPMethod: "GET",
  		HTTPPath:   "/v2/domainnames/{domainName}/apimappings/{apiMappingId}",
  	}
  
  	if input == nil {
  		input = &GetApiMappingInput{}
  	}
  
  	output = &GetApiMappingOutput{}
  	req = c.newRequest(op, input, output)
  	return
  }