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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 enumeratelet(iterable=None, start=0):
 r""" Enumerate chunks of data from an iterable or a chain :param iterable: object supporting iteration, or an index :type iterable: iterable, None or int :param start: an index to start counting from :type start: int :raises TypeError: if both parameters are set and ``iterable`` does not support iteration In pull mode, :py:func:`~.enumeratelet` works similar to the builtin :py:func:`~.enumerate` but is chainable: .. code:: chain = enumeratelet(['Paul', 'Thomas', 'Brian']) >> printlet(sep=':\t') for value in chain: pass # prints `0:	Paul`, `1:	Thomas`, `2:	Brian` By default, :py:func:`~.enumeratelet` enumerates chunks passed in from a pipeline. To use a different starting index, *either* set the ``start`` keyword parameter *or* set the first positional parameter. .. code:: chain = iteratelet(['Paul', 'Thomas', 'Brian']) >> enumeratelet() >> printlet(sep=':\t') for value in chain: pass # prints `0:	Paul`, `1:	Thomas`, `2:	Brian` """

    # shortcut directly to chain enumeration
    if iterable is None:
        return _enumeratelet(start=start)
    try:
        iterator = iter(iterable)
    except TypeError:
        if start != 0:
            raise  # first arg is not iterable but start is explicitly set
        return _enumeratelet(start=iterable)  # first arg is not iterable, try short notation
    else:
        return iterlet(enumerate(iterator, start=start))