Service support for the REST example
Returns a string representing the package version or an empty string if not installed. If more than one package name is specified, a dict of name/version pairs is returned.
CLI Example:
salt '*' pkg.version <package name>
salt '*' pkg.version <package1> <package2> <package3> ...
Docs for previous releases are available on salt.rtfd.org.
Latest Salt release: 2014.7.1
22.16.167. salt.modules.rest_sample
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