Suppose I had a yaml that looked like
common_animals: &common_animals
animals:
- name: "bird"
can_swim: false
- name: "fish"
can_swim: true
extended_animals:
<<: *common_animals
# here I want to add attribute to the bird object in the list `can_fly: true`
# here I want to add attribute to the fish object in the list `can_fly: false`
How might I achieve this?