The Map Keys action copies an object, then applies a repeatable set of
old-path to new-path mappings. Each mapping moves the value to its new location
and removes the old path.
Outputs
Rename and restructure
Given:
Map first_name to name and contact.email to customer.email:
Dot and bracket notation are supported for both paths. A missing old path is
skipped.
Mappings run in order and can overwrite an existing destination. A later
mapping also sees the changes made by earlier mappings, so avoid chains and
overlapping paths unless that sequence is intentional.