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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 name_from_base(base, max_length=63, short=False):
 """Append a timestamp to the provided string. This function assures that the total length of the resulting string is not longer than the specified max length, trimming the input parameter if necessary. Args: base (str):
 String used as prefix to generate the unique name. max_length (int):
 Maximum length for the resulting string. short (bool):
 Whether or not to use a truncated timestamp. Returns: str: Input parameter with appended timestamp. """

    timestamp = sagemaker_short_timestamp() if short else sagemaker_timestamp()
    trimmed_base = base[:max_length - len(timestamp) - 1]
    return '{}-{}'.format(trimmed_base, timestamp)