[Parameter] filter [Nullable] ✘ [Optional] ✔ [Description] The Projection filter is used as a filter definition. Null values of projected entries are processed as wildcards. [Type] 
Projection
R D F P a r s e r
a n y
P a r s e r C a l l b a c k
D O M S t r i n g
P r o j e c t i o n
o b j e c t