How to solve- "<Something> is already declared in the upper scope" code smells?

I am getting following code smell in my sonarqube dashboard, and I am not sure how to resolve such issues.

‘isInitialized’ is already declared in the upper scope.

Here’s my code-

let _isInitialized = false;

/**
 * Getter for _isInitialized
 *
 * @return {Boolean} _isInitialized
 */
export const isInitialized = function() {
    return _isInitialized;
};

/**
 * Sets isInitialized
 * @param {Boolean} isInitialized new value for inititialized
 */
export const setIsInitialized = function( isInitialized ) {
    _isInitialized = isInitialized;
};

Can anyone please explain what’s the problem in my code?

Don’t know what to try as my code is working correctly but getting this issue on sonarqube dashboard.

>Solution :

Here you define a variable called isInitialized in the scope of the module using const

export const isInitialized = function() {

Here you define a variable with the same name in the scope of the function using an argument name.

export const setIsInitialized = function( isInitialized ) {

Don’t do that. Use unique names for variables.