Fan out over a literal list of scalar values (strings, numbers, or booleans) supplied as a parameter. Each value is materialised as a small JSON file recorded in the expansion manifest so downstream blocks have a real file to consume.
map
values
'["NY","MI","CA"]'
'[1,2,3]'
manifest
- id: 01890000-0000-0000-0000-000000000008 name: base.map_list args: values: '["NY","MI","CA"]'