The format, YAML, is a simple human-readable markup language in which the structure of the data is determined by its identation, and will look familiar to anyone who has experience with the Python programming language.

The following showcases basic structure of a YAML document, as used by the pipelines:

# This is a comment; this line is completely ignored
This is a section:
  This is a subsection:
    # This subsection contains 4 key / value pairs:
    First key: "First value"
    Second key: 2
    Third key: 3.4
    # The following key has no value assosiated!
    Fourth key:

This is a section containing a list:
  - The first item
  - The second item