@property<EOL><INDENT>def is_monotonic_decreasing(self):<DEDENT>
return self._engine.is_monotonic_decreasing<EOL>
Return if the index is monotonic decreasing (only equal or
decreasing) values.

Examples
--------
>>> Index([3, 2, 1]).is_monotonic_decreasing
True
>>> Index([3, 2, 2]).is_monotonic_decreasing
True
>>> Index([3, 1, 2]).is_monotonic_decreasing
False