Constructs a new instance of a [Blackboard] using this plan. If [NodePath] prefetching is enabled, [param prefetch_root] will be used to retrieve node instances for [NodePath] variables and substitute their values.
Returns [code]true[/code] if this plan is derived from another, i.e., the base plan is not [code]null[/code]. A derived plan can only contain variables that are present in the base plan, and only variable values can be different.
Populates [param blackboard] with the variables from this plan. If [param overwrite] is [code]true[/code], existing variables with the same names will be overwritten. If [NodePath] prefetching is enabled, [param prefetch_root] will be used to retrieve node instances for [NodePath] variables and substitute their values.
Sets the parent scope plan provider - a callable that returns a [BlackboardPlan]. Used to provide hints in the inspector. When set, mapping feature becomes available.
Synchronizes this plan with the base plan: removes variables not present in the base plan, and updates type information. Only use this for custom tooling.
Enables or disables [NodePath] variable prefetching. If [code]true[/code], [NodePath] values will be replaced with node instances when the [Blackboard] is created.