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: apiproduct_client.go
    path of file: ./repos/azure-sdk-for-go/sdk/resourcemanager/apimanagement/armapimanagement
    
    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 armapimanagement

import (
	"context"
	"errors"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/arm"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
	"net/http"
	"net/url"
	"strconv"
	"strings"
)

// APIProductClient contains the methods for the APIProduct group.
// Don't use this type directly, use NewAPIProductClient() instead.
type APIProductClient struct {
	internal       *arm.Client
	subscriptionID string
}

// NewAPIProductClient creates a new instance of APIProductClient with the specified values.
//   - subscriptionID - The ID of the target subscription.
//   - credential - used to authorize requests. Usually a credential from azidentity.
//   - options - pass nil to accept the default values.
func NewAPIProductClient(subscriptionID string, credential azcore.TokenCredential, options *arm.ClientOptions) (*APIProductClient, error) {
	cl, err := arm.NewClient(moduleName, moduleVersion, credential, options)
	if err != nil {
		return nil, err
	}
	client := &APIProductClient{
		subscriptionID: subscriptionID,
		internal:       cl,
	}
	return client, nil
}

// NewListByApisPager - Lists all Products, which the API is part of.
//
// Generated from API ver
    
func (client *APIProductClient) listByApisCreateRequest(ctx context.Context, resourceGroupName string, serviceName string, apiID string, options *APIProductClientListByApisOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.ApiManagement/service/{serviceName}/apis/{apiId}/products"
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if serviceName == "" {
		return nil, errors.New("parameter serviceName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{serviceName}", url.PathEscape(serviceName))
	if apiID == "" {
		return nil, errors.New("parameter apiID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{apiId}", url.PathEscape(apiID))
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	if options != nil && options.Filter != nil {
		reqQP.Set("$filter", *options.Filter)
	}
	if options != nil && options.Top != nil {
		reqQP.Set("$top", strconv.FormatInt(int64(*options.Top), 10))
	}
	if options != nil && options.Skip != nil {
		reqQP.Set("$skip", strconv.FormatInt(int64(*options.Skip), 10))
	}
	reqQP.Set("api-version", "2022-08-01")
	req.Raw().URL.RawQuery = reqQP.Encode()
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}