OptionalcollectControls whether to collect the most specific context value or to collect all values in the context
hierarchy that are associated with a context name. Defaults to false if not specified.
If true, collects all values in the context hierarchy that are associated with the context name.
Collected values are returned as an array in context-descending order, i.e., values of parent contexts
come after values of child contexts.
If false, the most specific context value is returned, i.e., the value of the closest context
that has a value associated with that name.
Instructs how to look up context values.