Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this

Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this

Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this

Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this

Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this

Write a JSON file from a Dataframe in Pola-rs

Starting with a DataFrame that has a form such as this