public function exists(...$keys)
    {
        $keys = collect($keys)->map(function ($key) {
            return $this->applyPrefix($key);
        })->all();

        return $this->executeRaw(array_merge(['exists'], $keys));
    }
public function exists(...$keys)
    {
        $keys = collect($keys)->map(function ($key) {
            return $this->applyPrefix($key);
        })->all();

        return $this->executeRaw(array_merge(['exists'], $keys));
    }
public function exists ( ... $ keys ) { $ keys = collect ( $ keys ) -> map ( function ( $ key ) { return $ this -> applyPrefix ( $ key ) ; } ) -> all ( ) ; return $ this -> executeRaw ( array_merge ( [ 'exists' ] , $ keys ) ) ; }
Determine if the given keys exist.

@param  dynamic  $keys
@return int
Determine if the given keys exist .