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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 vserver_delete(v_name, **connection_args):
    '''
    Delete a lb vserver

    CLI Example:

    .. code-block:: bash

        salt '*' netscaler.vserver_delete 'vserverName'
    '''
    ret = True
    vserver = _vserver_get(v_name, **connection_args)
    if vserver is None:
        return False
    nitro = _connect(**connection_args)
    if nitro is None:
        return False
    try:
        NSLBVServer.delete(nitro, vserver)
    except NSNitroError as error:
        log.debug('netscaler module error - NSVServer.delete() failed: %s', error)
        ret = False
    _disconnect(nitro)
    return ret