You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: usagedetails_server.go
    path of file: ./repos/azure-sdk-for-go/sdk/resourcemanager/consumption/armconsumption/fake
    
    the code of the file until where you have to start completion: //go:build go1.18
// +build go1.18

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License. See License.txt in the project root for license information.
// Code generated by Microsoft (R) AutoRest Code Generator. DO NOT EDIT.
// Changes may cause incorrect behavior and will be lost if the code is regenerated.

package fake

import (
	"errors"
	"fmt"
	azfake "github.com/Azure/azure-sdk-for-go/sdk/azcore/fake"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/fake/server"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/consumption/armconsumption"
	"net/http"
	"net/url"
	"regexp"
	"strconv"
)

// UsageDetailsServer is a fake server for instances of the armconsumption.UsageDetailsClient type.
type UsageDetailsServer struct {
	// NewListPager is the fake for method UsageDetailsClient.NewListPager
	// HTTP status codes to indicate success: http.StatusOK, http.StatusNoContent
	NewListPager func(scope string, options *armconsumption.UsageDetailsClientListOptions) (resp azfake.PagerResponder[armconsumption.UsageDetailsClientListResponse])
}

// NewUsageDetailsServerTransport creates a new instance of UsageDetailsServerTransport with the provided implementation.
// The returned UsageDetailsServerTransport instance is connected to an instance of armconsumption.UsageDetailsClient via the
// azcore.ClientOptions.Transporter field in the client's constructor parameters.
func NewUsageDetailsServerTransport(srv *UsageDetailsServer) *UsageDetailsServerTransport {
	return &UsageDetailsServerTransport{
		srv:          srv,
		newListPager: newTracker[azfake.PagerResponder[armconsumption.UsageDetailsClientListResponse]](),
	}
}

// UsageDetailsServerTransport connects instances of armconsumption.UsageDetailsClient to instances of UsageDetailsServer.
// Don't use this type directly, use NewUsageDetailsServerTransport instead.
type UsageDetailsServerTransport struct {
	srv          *UsageDetailsServer
	n
    
func (u *UsageDetailsServerTransport) dispatchNewListPager(req *http.Request) (*http.Response, error) {
	if u.srv.NewListPager == nil {
		return nil, &nonRetriableError{errors.New("fake for method NewListPager not implemented")}
	}
	newListPager := u.newListPager.get(req)
	if newListPager == nil {
		const regexStr = `/(?P<scope>[!#&$-;=?-\[\]_a-zA-Z0-9~%@]+)/providers/Microsoft\.Consumption/usageDetails`
		regex := regexp.MustCompile(regexStr)
		matches := regex.FindStringSubmatch(req.URL.EscapedPath())
		if matches == nil || len(matches) < 1 {
			return nil, fmt.Errorf("failed to parse path %s", req.URL.Path)
		}
		qp := req.URL.Query()
		scopeParam, err := url.PathUnescape(matches[regex.SubexpIndex("scope")])
		if err != nil {
			return nil, err
		}
		expandUnescaped, err := url.QueryUnescape(qp.Get("$expand"))
		if err != nil {
			return nil, err
		}
		expandParam := getOptional(expandUnescaped)
		filterUnescaped, err := url.QueryUnescape(qp.Get("$filter"))
		if err != nil {
			return nil, err
		}
		filterParam := getOptional(filterUnescaped)
		skiptokenUnescaped, err := url.QueryUnescape(qp.Get("$skiptoken"))
		if err != nil {
			return nil, err
		}
		skiptokenParam := getOptional(skiptokenUnescaped)
		topUnescaped, err := url.QueryUnescape(qp.Get("$top"))
		if err != nil {
			return nil, err
		}
		topParam, err := parseOptional(topUnescaped, func(v string) (int32, error) {
			p, parseErr := strconv.ParseInt(v, 10, 32)
			if parseErr != nil {
				return 0, parseErr
			}
			return int32(p), nil
		})
		if err != nil {
			return nil, err
		}
		metricUnescaped, err := url.QueryUnescape(qp.Get("metric"))
		if err != nil {
			return nil, err
		}
		metricParam := getOptional(armconsumption.Metrictype(metricUnescaped))
		var options *armconsumption.UsageDetailsClientListOptions
		if expandParam != nil || filterParam != nil || skiptokenParam != nil || topParam != nil || metricParam != nil {
			options = &armconsumption.UsageDetailsClientListOptions{
				Expand:    expandParam,
				Filter:    filterParam,
				Skiptoken: skiptokenParam,
				Top:       topParam,
				Metric:    metricParam,
			}
		}
		resp := u.srv.NewListPager(scopeParam, options)
		newListPager = &resp
		u.newListPager.add(req, newListPager)
		server.PagerResponderInjectNextLinks(newListPager, req, func(page *armconsumption.UsageDetailsClientListResponse, createLink func() string) {
			page.NextLink = to.Ptr(createLink())
		})
	}
	resp, err := server.PagerResponderNext(newListPager, req)
	if err != nil {
		return nil, err
	}
	if !contains([]int{http.StatusOK, http.StatusNoContent}, resp.StatusCode) {
		u.newListPager.remove(req)
		return nil, &nonRetriableError{fmt.Errorf("unexpected status code %d. acceptable values are http.StatusOK, http.StatusNoContent", resp.StatusCode)}
	}
	if !server.PagerResponderMore(newListPager) {
		u.newListPager.remove(req)
	}
	return resp, nil
}