code: def maybe_cast_str_impl(x):
      """Converts numba UnicodeCharSeq (numpy string scalar) -> unicode type (string).
      Is a no-op for other types."""
      if isinstance(x, types.UnicodeCharSeq):
          return lambda x: str(x)
      else:
          return lambda x: x
  
imports: from __future__ import annotations
  from contextlib import contextmanager
  import operator
  import numba
  from numba import types
  from numba.core import cgutils
  from numba.core.datamodel import models
  from numba.core.extending import NativeValue, box, lower_builtin, make_attribute_wrapper, overload, overload_attribute, overload_method, register_model, type_callable, typeof_impl, unbox
  from numba.core.imputils import impl_ret_borrowed
  import numpy
  from pandas._libs import lib
  from pandas.core.indexes.base import Index
  from pandas.core.indexing import _iLocIndexer
  from pandas.core.internals import SingleBlockManager
  from pandas.core.series import Series
label_desc: Use image node_id 12 for calling a global function with example usage: maybe_cast_str_impl(x) and returns: function, function