pub trait Formatter {
// Required method
fn format(
&self,
writer: &mut dyn Write,
nodes: &[FileNode],
stats: &TreeStats,
root_path: &Path,
) -> Result<()>;
}pub trait Formatter {
// Required method
fn format(
&self,
writer: &mut dyn Write,
nodes: &[FileNode],
stats: &TreeStats,
root_path: &Path,
) -> Result<()>;
}