pub fn non_expiring(&mut self) {
        if self.contains_claim("exp") {
            self.list_of.remove_entry("exp").unwrap();
        }
    }
/// Removes the `exp` claim, indicating a token that never expires.
Removes the `exp` claim, indicating a token that never expires.
Removes the ` exp ` claim indicating a token that never expires .
pub fn non_expiring(&mut self) {
        if self.contains_claim("exp") {
            self.list_of.remove_entry("exp").unwrap();
        }
    }
pub fn non_expiring ( & mut self ) { if self . contains_claim ( " " ) { self . list_of . remove_entry ( " " ) . unwrap ( ) ; } }
Removes the `exp` claim, indicating a token that never expires.
Removes the ` exp ` claim indicating a token that never expires .
&mut self