def string_to_weld_literal(s):
    """
    Converts a string to a UTF-8 encoded Weld literal byte-vector.

    Examples
    --------
    >>> string_to_weld_literal('hello')
    '[104c,101c,108c,108c,111c]'

    """
    return "[" + ",".join([str(b) + 'c' for b in list(s.encode('utf-8'))]) + "]"