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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def peer(name):
    '''
    Add another node into the peer list.

    name
        The remote host to probe.

    CLI Example:

    .. code-block:: bash

        salt 'one.gluster.*' glusterfs.peer two

    GLUSTER direct CLI example (to show what salt is sending to gluster):

        $ gluster peer probe ftp2

    GLUSTER CLI 3.4.4 return example (so we know what we are parsing):
        #if the "peer" is the local host:
        peer probe: success: on localhost not needed

        #if the peer was just added:
        peer probe: success

        #if the peer was already part of the cluster:
        peer probe: success: host ftp2 port 24007 already in peer list



    '''
    if salt.utils.cloud.check_name(name, 'a-zA-Z0-9._-'):
        raise SaltInvocationError(
            'Invalid characters in peer name "{0}"'.format(name))

    cmd = 'peer probe {0}'.format(name)
    return _gluster(cmd)