code: def __call__(self, series, dtype, skip_infer=False):
      if dtype is None and not skip_infer:
          inferred_dtype = None
          if callable(self._arg):
              # arg is a function, try to inspect the signature
              sig = inspect.signature(self._arg)
              return_type = sig.return_annotation
              if return_type is not inspect._empty:
                  inferred_dtype = np.dtype(return_type)
              else:
                  try:
                      with quiet_stdio():
                          # try to infer dtype by calling the function
                          inferred_dtype = (
                              build_series(series)
                              .map(self._arg, na_action=self._na_action)
                              .dtype
                          )
                  except:  # noqa: E722  # nosec
                      pass
          else:
              if isinstance(self._arg, MutableMapping):
                  inferred_dtype = pd.Series(self._arg).dtype
              else:
                  inferred_dtype = self._arg.dtype
          if inferred_dtype is not None and np.issubdtype(
              inferred_dtype, np.number
          ):
              if np.issubdtype(inferred_dtype, np.inexact):
                  # for the inexact e.g. float
                  # we can make the decision,
                  # but for int, due to the nan which may occur,
                  # we cannot infer the dtype
                  dtype = inferred_dtype
          else:
              dtype = inferred_dtype
  
      if dtype is None:
          if not skip_infer:
              raise ValueError(
                  "cannot infer dtype, it needs to be specified manually for `map`"
              )
      else:
          dtype = np.int64 if dtype is int else dtype
          dtype = np.dtype(dtype)
  
      inputs = [series]
      if isinstance(self._arg, SERIES_TYPE):
          inputs.append(self._arg)
  
      if isinstance(series, SERIES_TYPE):
          return self.new_series(
              inputs,
              shape=series.shape,
              dtype=dtype,
              index_value=series.index_value,
              name=series.name,
          )
      else:
          return self.new_index(
              inputs,
              shape=series.shape,
              dtype=dtype,
              index_value=series.index_value,
              name=series.name,
          )
  
imports: import inspect
  from collections.abc import MutableMapping
  import numpy
  import pandas
  from ...None import opcodes
  from ...core import OutputType, recursive_tile
  from ...core.custom_log import redirect_custom_log
  from ...serialization.serializables import KeyField, AnyField, StringField
  from ...utils import has_unknown_shape, enter_current_session, quiet_stdio
  from ..core import SERIES_TYPE
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ..utils import build_series
label_desc: Use image node_id 6 for calling the DataFrameMap obj's underlying member method code with example usage: obj.__call__(series, dtype, skip_infer) and returns: self, self