def info_installed(*names, **kwargs):
    '''
    .. versionadded:: 2015.8.1

    Return the information of the named package(s), installed on the system.

    :param all_versions:
        Include information for all versions of the packages installed on the minion.

    CLI example:

    .. code-block:: bash

        salt '*' pkg.info_installed <package1>
        salt '*' pkg.info_installed <package1> <package2> <package3> ...
        salt '*' pkg.info_installed <package1> <package2> <package3> all_versions=True
    '''
    all_versions = kwargs.get('all_versions', False)
    ret = dict()
    for pkg_name, pkgs_nfo in __salt__['lowpkg.info'](*names, **kwargs).items():
        pkg_nfo = pkgs_nfo if all_versions else [pkgs_nfo]
        for _nfo in pkg_nfo:
            t_nfo = dict()
            # Translate dpkg-specific keys to a common structure
            for key, value in _nfo.items():
                if key == 'source_rpm':
                    t_nfo['source'] = value
                else:
                    t_nfo[key] = value
            if not all_versions:
                ret[pkg_name] = t_nfo
            else:
                ret.setdefault(pkg_name, []).append(t_nfo)
    return ret
.. versionadded:: 2015.8.1

    Return the information of the named package(s), installed on the system.

    :param all_versions:
        Include information for all versions of the packages installed on the minion.

    CLI example:

    .. code-block:: bash

        salt '*' pkg.info_installed <package1>
        salt '*' pkg.info_installed <package1> <package2> <package3> ...
        salt '*' pkg.info_installed <package1> <package2> <package3> all_versions=True