getRelatedListCount.html

<template>
    <lightning-card title="wireGetRelatedListCount">
        <template if:true={responseData}>
            <div class="slds-m-around_medium">                
                    <p key={responseData.count}>
                        {responseData.count} : {responseData.hasMore}
                    </p>                
            </div>
        </template>
    </lightning-card>
</template>