Merge

Merge(list-of-rules-or-associations, function)

use the function to merge right-hand-side values with the left-hand-side key in the list-of-rules-or-associations.

Examples

>> Merge({<|x->1|>, x->2, x->3, {y->4}}, Identity)
<|x->{1,2,3},y->{4}|>