how to add webp in wordpress code example

Example: webp in wordpress

//Erlaubt den WebP Upload in WordPress - Code in die functions.php
//Allows WebP upload to WordPress - Code goes to functions.php
add_filter( 'wp_check_filetype_and_ext', 'wpse_file_and_ext_webp', 10, 4 );
function wpse_file_and_ext_webp( $types, $file, $filename, $mimes ) {
    if ( false !== strpos( $filename, '.webp' ) ) {
        $types['ext'] = 'webp';
        $types['type'] = 'image/webp';
    }
    return $types;
}
add_filter( 'upload_mimes', 'wpse_mime_types_webp' );
function wpse_mime_types_webp( $mimes ) {
    $mimes['webp'] = 'image/webp';
  return $mimes;
}