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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 errorbar(hists, xerr=True, yerr=True, xpadding=0, ypadding=.1, xerror_in_padding=True, yerror_in_padding=True, emptybins=True, snap=True, axes=None, **kwargs):
 """ Make a matplotlib errorbar plot from a ROOT histogram or graph or list of histograms and graphs. Parameters hists : Hist, Graph or list of Hist and Graph The histogram(s) and/or Graph(s) to be plotted xerr : bool, optional (default=True) If True, x error bars will be displayed. yerr : bool or string, optional (default=True) If False, no y errors are displayed. If True, an individual y error will be displayed for each hist in the stack. If 'linear' or 'quadratic', a single error bar will be displayed with either the linear or quadratic sum of the individual errors. xpadding : float or 2-tuple of floats, optional (default=0) Padding to add on the left and right sides of the plot as a fraction of the axes width after the padding has been added. Specify unique left and right padding with a 2-tuple. ypadding : float or 2-tuple of floats, optional (default=.1) Padding to add on the top and bottom of the plot as a fraction of the axes height after the padding has been added. Specify unique top and bottom padding with a 2-tuple. xerror_in_padding : bool, optional (default=True) If True then make the padding inclusive of the x errors otherwise only pad around the x values. yerror_in_padding : bool, optional (default=True) If True then make the padding inclusive of the y errors otherwise only pad around the y values. emptybins : bool, optional (default=True) If True (the default) then plot bins with zero content otherwise only show bins with nonzero content. snap : bool, optional (default=True) If True (the default) then the origin is an implicit lower bound of the histogram unless the histogram has both positive and negative bins. axes : matplotlib Axes instance, optional (default=None) The axes to plot on. If None then use the global current axes. kwargs : additional keyword arguments, optional All additional keyword arguments are passed to matplotlib's errorbar function. Returns ------- The return value from matplotlib's errorbar function, or list of such return values if a list of histograms and/or graphs was plotted. """

    if axes is None:
        axes = plt.gca()
    curr_xlim = axes.get_xlim()
    curr_ylim = axes.get_ylim()
    was_empty = not axes.has_data()
    if isinstance(hists, (_Hist, _Graph1DBase)):
        # This is a single plottable object.
        returns = _errorbar(
            hists, xerr, yerr,
            axes=axes, emptybins=emptybins, **kwargs)
        _set_bounds(hists, axes=axes,
                    was_empty=was_empty,
                    prev_ylim=curr_ylim,
                    xpadding=xpadding, ypadding=ypadding,
                    xerror_in_padding=xerror_in_padding,
                    yerror_in_padding=yerror_in_padding,
                    snap=snap)
    else:
        returns = []
        for h in hists:
            returns.append(errorbar(
                h, xerr=xerr, yerr=yerr, axes=axes,
                xpadding=xpadding, ypadding=ypadding,
                xerror_in_padding=xerror_in_padding,
                yerror_in_padding=yerror_in_padding,
                snap=snap,
                emptybins=emptybins,
                **kwargs))
    return returns