pub trait FileEngine {
// Required methods
fn files(&self) -> Vec<String>;
fn read_file<'life0, 'life1, 'async_trait>(
&'life0 self,
file: &'life1 str
) -> Pin<Box<dyn Future<Output = Option<Vec<u8>>> + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn read_file_to_string<'life0, 'life1, 'async_trait>(
&'life0 self,
file: &'life1 str
) -> Pin<Box<dyn Future<Output = Option<String>> + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
fn get_native_file<'life0, 'life1, 'async_trait>(
&'life0 self,
file: &'life1 str
) -> Pin<Box<dyn Future<Output = Option<Box<dyn Any>>> + 'async_trait>>
where Self: 'async_trait,
'life0: 'async_trait,
'life1: 'async_trait;
}