Client APIs
Converting from Other Types
`list` type objects map to a `LIST` type of the child type.
Which can also be arbitrarily nested.  
```python
import duckdb
from typing import Union

duckdb.typing.DuckDBPyType(list[dict[Union[str, int], str]])
```  
```text
MAP(UNION(u1 VARCHAR, u2 BIGINT), VARCHAR)[]
```