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

package cognitoidentity

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

// Creates a new identity pool. The identity pool is a store of user identity
// information that is specific to your AWS account. The keys for
// SupportedLoginProviders are as follows:
//   - Facebook: graph.facebook.com
//   - Google: accounts.google.com
//   - Amazon: www.amazon.com
//   - Twitter: api.twitter.com
//   - Digits: www.digits.com
//
// You must use AWS Developer credentials to call this API.
func (c *Client) CreateIdentityPool(ctx context.Context, params *CreateIdentityPoolInput, optFns ...func(*Options)) (*CreateIdentityPoolOutput, error) {
	if params == nil {
		params = &CreateIdentityPoolInput{}
	}

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

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

// Input to the CreateIdentityPool action.
type CreateIdentityPoolInput struct {

	// TRUE if the identity pool supports unauthenticated logins.
	//
	// This member is required.
	AllowUnauthenticatedIdentities bool

	// A string that you provide.
	//
	// This member is required.
	IdentityPoolName *string

	// Enables or disables the Basic (Classic) authentication flow. For more
	// information, see Identity Pools (Federated Identi
    
func (c *Client) addOperationCreateIdentityPoolMiddlewares(stack *middleware.Stack, options Options) (err error) {
	if err := stack.Serialize.Add(&setOperationInputMiddleware{}, middleware.After); err != nil {
		return err
	}
	err = stack.Serialize.Add(&awsAwsjson11_serializeOpCreateIdentityPool{}, middleware.After)
	if err != nil {
		return err
	}
	err = stack.Deserialize.Add(&awsAwsjson11_deserializeOpCreateIdentityPool{}, middleware.After)
	if err != nil {
		return err
	}
	if err := addProtocolFinalizerMiddlewares(stack, options, "CreateIdentityPool"); 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 = addOpCreateIdentityPoolValidationMiddleware(stack); err != nil {
		return err
	}
	if err = stack.Initialize.Add(newServiceMetadataMiddleware_opCreateIdentityPool(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
}