Split result array into files, but keep all parent keys?

[treatmesubj]

I've got a yaml like below, with a bunch of templates, which I like to split into separate files, using a command like this:

mkdir split &&
    yq '.spec.templates.[]' my-pipeline.yaml -s '"./split/" + .templateName'`

my-pipeline.yaml:

apiVersion: crd.ibm.k8s.io/v1
kind: FactPipeline
metadata:
  name: my-pipeline
spec:
  templates:
    - templateName: temp1
    - templateName: temp2
    - templateName: temp3

However, in each of the splits, it would be nice if I could keep all the parent-keys.
So, for example, the first resulting file would be this:

apiVersion: crd.ibm.k8s.io/v1
kind: FactPipeline
metadata:
  name: my-pipeline
spec:
  templates:
    - templateName: temp1

[treatmesubj]

both of these do what I wanted:

mkdir split &&
    yq '[.spec.templates.[] as $i | ($i | parent(3) | .spec.templates = [$i]) as $f | $f].[] | split_doc' \
    my-pipeline.yaml \
    -s '"./split/" + .spec.templates.[0].templateName'

mkdir split &&
    yq '[.spec.templates.[] as $i | [$i | parent(3) | .spec.templates = [$i]].[0]].[] | split_doc' \
    my-pipeline.yaml \
    -s '"./split/" + .spec.templates.[0].templateName'