Function import_with_handler 

pub fn import_with_handler<I, H>(
    persy: &Persy,
    importer: I,
    handler: H,
) -> EIRes<()>
where
    I: Iterator<Item = Info>,
    H: Handler,

Import the data to a persy storage from a custom format

Example

use persy::{Persy, Config};
use persy_expimp::{import_with_handler,Info, Handler, Mapper};

struct HandlerImpl{ //...
};

impl Handler for  HandlerImpl {
   fn pre(&self, _persy: &Persy, _mapper: &Mapper) -> EIRes<()> {
       //....
       Ok(())
   }
   fn post(&self, _persy: &Persy, _mapper: &Mapper) -> EIRes<()> {
       //....
       Ok(())
   }
}
Persy::create("imported.persy")?;
let persy = Persy::open("imported.persy", Config::new())?;
// Source informations from a custom source
let source = Vec::<Info>::new();
import_with_handler(&persy,source.into_iter(), HandlerImpl{})?;