def METHOD_NAME(self, vmname):
    '''Get VM state associated with vmname
    Typical output is ``virsh --readonly list --all`` command::
         Id    Name                           State
        ----------------------------------------------------
         2     rhel7.4                        running
         4     rhel7.0                        paused
    Example:
        >>> output.get_vm_state('rhel7.0')
        'paused'
    Args:
        vmname (str): A key. For ex. ``rhel7.0``.
    Returns:
        str: State of VM. Returns None if, ``vmname`` does not exist.
    '''
    if vmname.lower() in self.keywords:
        return self.search(name=vmname)[0]['state']
    return None