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: transformations_client.go
    path of file: ./repos/azure-sdk-for-go/sdk/resourcemanager/streamanalytics/armstreamanalytics
    
    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 armstreamanalytics

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"
	"strings"
)

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

// NewTransformationsClient creates a new instance of TransformationsClient 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 NewTransformationsClient(subscriptionID string, credential azcore.TokenCredential, options *arm.ClientOptions) (
    
func (client *TransformationsClient) getCreateRequest(ctx context.Context, resourceGroupName string, jobName string, transformationName string, options *TransformationsClientGetOptions) (*policy.Request, error) {
	urlPath := "/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/Microsoft.StreamAnalytics/streamingjobs/{jobName}/transformations/{transformationName}"
	if client.subscriptionID == "" {
		return nil, errors.New("parameter client.subscriptionID cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{subscriptionId}", url.PathEscape(client.subscriptionID))
	if resourceGroupName == "" {
		return nil, errors.New("parameter resourceGroupName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{resourceGroupName}", url.PathEscape(resourceGroupName))
	if jobName == "" {
		return nil, errors.New("parameter jobName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{jobName}", url.PathEscape(jobName))
	if transformationName == "" {
		return nil, errors.New("parameter transformationName cannot be empty")
	}
	urlPath = strings.ReplaceAll(urlPath, "{transformationName}", url.PathEscape(transformationName))
	req, err := runtime.NewRequest(ctx, http.MethodGet, runtime.JoinPaths(client.internal.Endpoint(), urlPath))
	if err != nil {
		return nil, err
	}
	reqQP := req.Raw().URL.Query()
	reqQP.Set("api-version", "2021-10-01-preview")
	req.Raw().URL.RawQuery = reqQP.Encode()
	req.Raw().Header["Accept"] = []string{"application/json"}
	return req, nil
}