YAML

script:
  - |
    echo
        a
        b
        c    

script:
  - >
    echo
        a
        b
        c    

script:  |
    echo
        a
        b
        c    

base: &base
  name: Everyone has same name

foo: &foo
  <<: *base
  age: 10

bar: &bar
  <<: *base
  age: 20

invoice:
  billing address: &address1
    name: Santa Clause
    street: Santa Claus Lane
    city: North Pole
  shipping address: *address1

name1: &name Larry Wall
name2: *name