Client APIs
Appender
The Rust client supports the [DuckDB Appender API](#docs:data:appender) for bulk inserts. For example:  
```rust
fn insert_rows(conn: &Connection) -> Result<()> {
let mut app = conn.appender("foo")?;
app.append_rows([[1, 2], [3, 4], [5, 6], [7, 8], [9, 10]])?;
Ok(())
}
```