pub trait ExplainTrace {
// Required method
fn explain_trace(
&self,
trace: &Vec<Activity>,
balance: &Fraction,
) -> Result<LanguageOfAlignments>;
}pub trait ExplainTrace {
// Required method
fn explain_trace(
&self,
trace: &Vec<Activity>,
balance: &Fraction,
) -> Result<LanguageOfAlignments>;
}