Calling a function from a class in a different lightning web component

Question

I am trying to show a lightning spinner on search and disable it after the search has loaded. The method that calls the search is in a different file than the related html to show the spinner, which is the same file that handles the loaded results. I have tried importing the method into the file that handles the search, but this has only produced errors.

Here is the code for the file with the associated html

@track showSpinner = false;

    handleResult(event){
        console.log("Loaded");
        this.showSpinner = false;
        });
    }

    enableSpinner() {
        this.showSpinner = true;
    }

and here is the code for the file that handles the initial search:

export default (Base) => class LwcSearchParamMixin extends Base {
    @wire(MessageContext)
    messageContext;

    params = {};

    editParam(key, value){
        console.log("Searching");
        this.params[key] = value;
        publish(this.messageContext, searchParamUpdated, {
            id:key, value
        })
    }
}