Live-loader: Removing previous predicate/relationship during xidmap import

Is there a way to make the live loader (when in JSON mode) delete relationships/predicates from a previous import if not present in the current import?
For example using the live-json testdata the Homer node would be first be imported with Homer as the parent to Bart ( b ), Lisa ( l ), and Maggie ( m1 ):

"parent_to":[
{ "uid":"_:b" },
{ "uid":"_:l" },
{ "uid":"_:m2" }
]

If I were to execute another import (using --xidmap ) removing Maggie ( m1 ) and adding (incorrectly) Abraham ( a ) as a child of Homer:

"parent_to":[
{ "uid":"_:b" },
{ "uid":"_:l" },
{ "uid":"_:a" }
]

The relationship between Homer and Abraham would be created but the relationship between Homer and Maggie would not be removed.
Essentially is there a mode for the live loader remove data instead of just appending new predicates? Or is the expectation if you’re doing that to write your own loader than handles it more elegantly

Hey @lyoung, thanks to asking this. I don’t think live loader has above capability. If you want to achieve something like above you need to have custom implementation at your end.