How to transform palantir foundry struct values to columns and its value

Question

input column values in below format

{ "actualDuration": null, "actualCloseDate": 1.25, "actualDoneDate": null }

output expected

column name-actualDuration   column name- actualCloseDate  column name-actualDoneDate
               null                       1.25                           null

is there any function like split or explode?