direction property
How to read a hierarchical filter (context, resource). REQUIRED when either is
present and REFUSED when neither is: actingIn — entries whose scope or qualifier
is an ancestor-or-self of the queried one, i.e. who may act IN it (unrestricted act
scopes and unqualified capabilities match); subtree — entries holding a grant at
or BENEATH the queried one (an unrestricted act scope or an unqualified capability
does NOT match, and an entry naming contexts both inside and outside the subtree
DOES); any — the union. Same three questions as 0.1's acting-in / subtree /
any, re-cased to lowerCamelCase, with no default.
Implementation
final PayloadDirection? direction;