def clear_highlight(vim, namespace):
    """ clear highlight
    Args: 
        vim (obj): nvim socket handler
        namespace (str): Namespace to which this highlight belongs
    """ 

    """ Creates or gets existing namespace """
    nid = vim.request("nvim_create_namespace", namespace)
    return vim.request("nvim_buf_clear_namespace", 0, nid, 0, -1)