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: api_op_StartKeyPhrasesDetectionJob.go
    path of file: ./repos/aws-sdk-go-v2/service/comprehend
    
    the code of the file until where you have to start completion: // Code generated by smithy-go-codegen DO NOT EDIT.

package comprehend

import (
	"context"
	"fmt"
	awsmiddleware "github.com/aws/aws-sdk-go-v2/aws/middleware"
	"github.com/aws/aws-sdk-go-v2/service/comprehend/types"
	"github.com/aws/smithy-go/middleware"
	smithyhttp "github.com/aws/smithy-go/transport/http"
)

// Starts an asynchronous key phrase detection job for a collection of documents.
// Use the operation to track the status of a job.
func (c *Client) StartKeyPhrasesDetectionJob(ctx context.Context, params *StartKeyPhrasesDetectionJobInput, optFns ...func(*Options)) (*StartKeyPhrasesDetectionJobOutput, error) {
	if params == nil {
		params = &StartKeyPhrasesDetectionJobInput{}
	}

	result, metadata, err := c.invokeOperation(ctx, "StartKeyPhrasesDetectionJob", params, optFns, c.addOperationStartKeyPhrasesDetectionJobMiddlewares)
	if err != nil {
		return nil, err
	}

	out := result.(*StartKeyPhrasesDetectionJobOutput)
	out.ResultMetadata = metadata
	return out, nil
}

type StartKeyPhrasesDetectionJobInput struct {

	// The Amazon Resource Name (ARN) of the IAM role that grants Amazon Comprehend
	// read access to your input data. For more information, see Role-based permissions (https://docs.aws.amazon.com/comprehend/latest/dg/security_iam_id-based-policy-examples.html#auth-role-permissions)
	// .
	//
	// This member is required.
	DataAccessRoleArn *string

	// Specifies the format and location of the input data for the job.
	//
	// This member is required.
	InputDataConfig *types.InputDataConfig

	// The language of the input documents. You can specify any of the primary
	// languages supported by Amazon Comprehend. All documents must be in the same
	// language.
	//
	// This member is required.
	LanguageCode types.LanguageCode

	// Specifies where 
    
func (c *Client) addOperationStartKeyPhrasesDetectionJobMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpStartKeyPhrasesDetectionJob{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpStartKeyPhrasesDetectionJob{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "StartKeyPhrasesDetectionJob"); err != nil {
		return fmt.Errorf("add protocol finalizers: %v", err)
	}

	if err = addlegacyEndpointContextSetter(stack, options); err != nil {
		return err
	}
	if err = addSetLoggerMiddleware(stack, options); err != nil {
		return err
	}
	if err = addClientRequestID(stack); err != nil {
		return err
	}
	if err = addComputeContentLength(stack); err != nil {
		return err
	}
	if err = addResolveEndpointMiddleware(stack, options); err != nil {
		return err
	}
	if err = addComputePayloadSHA256(stack); err != nil {
		return err
	}
	if err = addRetry(stack, options); err != nil {
		return err
	}
	if err = addRawResponseToMetadata(stack); err != nil {
		return err
	}
	if err = addRecordResponseTiming(stack); err != nil {
		return err
	}
	if err = addClientUserAgent(stack, options); err != nil {
		return err
	}
	if err = smithyhttp.AddErrorCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = smithyhttp.AddCloseResponseBodyMiddleware(stack); err != nil {
		return err
	}
	if err = addSetLegacyContextSigningOptionsMiddleware(stack); err != nil {
		return err
	}
	if err = addIdempotencyToken_opStartKeyPhrasesDetectionJobMiddleware(stack, options); err != nil {
		return err
	}
	if err = addOpStartKeyPhrasesDetectionJobValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opStartKeyPhrasesDetectionJob(options.Region), middleware.Before); err != nil {
		return err
	}
	if err = addRecursionDetection(stack); err != nil {
		return err
	}
	if err = addRequestIDRetrieverMiddleware(stack); err != nil {
		return err
	}
	if err = addResponseErrorMiddleware(stack); err != nil {
		return err
	}
	if err = addRequestResponseLogging(stack, options); err != nil {
		return err
	}
	if err = addDisableHTTPSMiddleware(stack, options); err != nil {
		return err
	}
	return nil
}