pub trait OsDirs {
fn app_path(&self, filename: &str) -> Option<PathBuf>;
fn app_config_directory(&self) -> Option<PathBuf>;
fn config_directory(&self) -> Option<PathBuf>;
}
pub trait OsDirs {
fn app_path(&self, filename: &str) -> Option<PathBuf>;
fn app_config_directory(&self) -> Option<PathBuf>;
fn config_directory(&self) -> Option<PathBuf>;
}