def sls_exists(mods, test=None, queue=False, **kwargs):
    '''
    Tests for the existance the of a specific SLS or list of SLS files on the
    master. Similar to :py:func:`state.show_sls <salt.modules.state.show_sls>`,
    rather than returning state details, returns True or False. The default
    environment is ``base``, use ``saltenv`` to specify a different environment.

    .. versionadded:: 2019.2.0

    saltenv
        Specify a salt fileserver environment from which to look for the SLS files
        specified in the ``mods`` argument

    CLI Example:

    .. code-block:: bash

        salt '*' state.sls_exists core,edit.vim saltenv=dev
    '''
    return isinstance(
        show_sls(mods, test=test, queue=queue, **kwargs),
        dict
    )