CentOS 7 - Updates for x86_64: development/libraries: perl-YAML
perl-YAML - YAML Ain't Markup Language (tm)
The YAML.pm module implements a YAML Loader and Dumper based on the
YAML 1.0 specification. http://www.yaml.org/spec/
YAML is a generic data serialization language that is optimized for
human readability. It can be used to express the data structures of
most modern programming languages, including Perl.
For information on the YAML syntax, please refer to the YAML