lit
Wraps an inline constant as a task argument, as in transform(extract(), lit(0.9)). It is passed to the task as a constant and creates no dependency edge.
The Dag's call arguments travel to Airflow as JSON, so the value has to be a string, number, boolean, list, or map; anything else fails when the Dag is parsed.
Parameters
value
Constant to bind; may be null for a nullable parameter.