code: def str_cat(self, *others, **kwargs):
      return self.str.cat(others=others, **kwargs)
  
imports: from __future__ import annotations
  import warnings
  import numpy
  import pandas
  from dask.dataframe._compat import check_to_pydatetime_deprecation
  from dask.utils import derived_from
label_desc: Use image node_id 6 for calling a global function with example usage: str_cat() and returns: self