in crates/iceberg/src/spec/datatypes.rs [46:53]
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
Type::Primitive(primitive) => write!(f, "{}", primitive),
Type::Struct(s) => write!(f, "{}", s),
Type::List(_) => write!(f, "list"),
Type::Map(_) => write!(f, "map"),
}
}