$cache
$cache :
Render a result based on GraphQl
__construct(array $cache = null)
Creates new instance of the engine
If the schema file name is not provided, it will default to
Pluf::f('graphql_schema')
If the cache folder name is not provided, it will default to
Pluf::f('tmp_folder')
array | $cache | a folder path to store the schema file |