matplotlib.axis.XAxis.set_view_interval
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XAxis.set_view_interval(vmin, vmax, ignore=False)[source] - 
If ignore is False, the order of vmin, vmax does not matter; the original axis orientation will be preserved. In addition, the view limits can be expanded, but will not be reduced. This method is for mpl internal use; for normal use, see
set_xlim(). 
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    https://matplotlib.org/3.0.0/api/_as_gen/matplotlib.axis.XAxis.set_view_interval.html