class_docstr: Tick at every integer mapping of the string data.
class_docstr_tok: ["Tick","at","every","integer","mapping","of","the","string","data","."]
code: def __call__(self):
      # docstring inherited
      return list(self._units.values())
  
imports: from collections import OrderedDict
  import dateutil.parser
  import itertools
  import logging
  import numpy
  from matplotlib import _api, ticker, units
label_desc: Use image node_id 2 for calling the StrCategoryLocator obj's underlying member method code with example usage: obj.__call__() and returns: list