Function dw2pel 

pub fn dw2pel(dw: &str) -> String

Transform a DataWeave expression to PEL (Policy Expression Language) so it can be consumed by the PDK.

Example

use pdk_unit::dw2pel;

let mut tester = UnitTestBuilder::default()
    .with_config(json!({"dw": dw2pel("atributes.headers.test")}).to_string())