pub trait StringBuilder<'s> {
// Required methods
fn clear(&mut self);
fn push_str(&mut self, append: &'s str) -> bool;
fn push_char(&mut self, append: char) -> bool;
}
pub trait StringBuilder<'s> {
// Required methods
fn clear(&mut self);
fn push_str(&mut self, append: &'s str) -> bool;
fn push_char(&mut self, append: char) -> bool;
}