possible yaml updates:

update key value in map: scalar -> scalar [update1]
add scalar key to map [update2]
remove scalar key from map [update3]

update element in list: scalar -> scalar [update4]
add scalar element to list [update5]
remove scalar element from list [update6]

add map key to map [update7]
add list key to map [update8]
remove map key from map [update9]
remove list key from map [update10]

add map element to list [update11]
add list element to list [update12]
remove map element from list [update13]
remove list element from list [update14]

update key value in map: scalar -> map [update15]
update key value in map: scalar -> list [update16]
update key value in map: map -> scalar [update17]
update key value in map: map -> map [update18]
update key value in map: map -> list [update19]
update key value in map: list -> scalar [update20]
update key value in map: list -> map [update21]
update key value in map: list -> list [update22]

update element in list: scalar -> map [update23]
update element in list: scalar -> list [update24]
update element in list: map -> scalar [update25]
update element in list: map -> map [update26]
update element in list: map -> list [update27]
update element in list: list -> scalar [update28]
update element in list: list -> map [update29]
update element in list: list -> list [update30]