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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 build_command(chunks):
 """ Create a command from various parts. The parts provided may include a base, flags, option-bound arguments, and positional arguments. Each element must be either a string or a two-tuple. Raw strings are interpreted as either the command base, a pre-joined pair (or multiple pairs) of option and argument, a series of positional arguments, or a combination of those elements. The only modification they undergo is trimming of any space characters from each end. :param Iterable[str | (str, str | NoneType)] chunks: the collection of the command components to interpret, modify, and join to create a single meaningful command :return str: the single meaningful command built from the given components :raise ValueError: if no command parts are provided """


    if not chunks:
        raise ValueError(
            "No command parts: {} ({})".format(chunks, type(chunks)))

    if isinstance(chunks, str):
        return chunks

    parsed_pieces = []

    for cmd_part in chunks:
        if cmd_part is None:
            continue
        try:
            # Trim just space, not all whitespace.
            # This prevents damage to an option that specifies,
            # say, tab as a delimiter.
            parsed_pieces.append(cmd_part.strip(" "))
        except AttributeError:
            option, argument = cmd_part
            if argument is None or argument == "":
                continue
            option, argument = option.strip(" "), str(argument).strip(" ")
            parsed_pieces.append("{} {}".format(option, argument))

    return " ".join(parsed_pieces)