fn get_named_columns<'a>(
seen_avro_nodes: &mut BTreeSet<usize>,
schema: SchemaNode<'a>,
base_name: Option<&str>,
) -> Result<Vec<(ColumnName, ColumnType)>>
fn get_named_columns<'a>(
seen_avro_nodes: &mut BTreeSet<usize>,
schema: SchemaNode<'a>,
base_name: Option<&str>,
) -> Result<Vec<(ColumnName, ColumnType)>>