is_promotable() function

Determine if a scenario can be promoted to become a primary scenario.

This function checks whether the given scenario is eligible to be promoted as a primary scenario.

Parameters:

Name	Type	Description	Default
scenario	Union[Scenario, ScenarioId]	The scenario to be evaluated for promotion.	required

Returns:

Type	Description
ReasonCollection	A ReasonCollection object that can function as a Boolean value,
ReasonCollection	which is True if the given scenario can be promoted to be a primary scenario. False otherwise.