def _get_level_values(self, level):
self._validate_index_level(level)<EOL>return self<EOL>
Return an Index of values for requested level.

This is primarily useful to get an individual level of values from a
MultiIndex, but is provided on Index as well for compatability.

Parameters
----------
level : int or str
    It is either the integer position or the name of the level.

Returns
-------
Index
    Calling object, as there is only one level in the Index.

See Also
--------
MultiIndex.get_level_values : Get values for a level of a MultiIndex.

Notes
-----
For Index, level should be 0, since there are no multiple levels.

Examples
--------

>>> idx = pd.Index(list('abc'))
>>> idx
Index(['a', 'b', 'c'], dtype='object')

Get level values by supplying `level` as integer:

>>> idx.get_level_values(0)
Index(['a', 'b', 'c'], dtype='object')