code: def _call_dataframe_dataframe(
      self, lhs: TileableType, rhs: TileableType
  ):
      l_shape = list(lhs.shape)
      r_shape = list(rhs.shape)
      if self.axis is None or self.axis == 0:
          l_idx_val = r_idx_val = self._merge_index(
              lhs.index_value, rhs.index_value, how=self.join
          )
          l_shape[0] = r_shape[0] = np.nan
      else:
          l_idx_val, r_idx_val = lhs.index_value, rhs.index_value
  
      if self.axis is None or self.axis == 1:
          l_empty = build_empty_df(lhs.dtypes)
          r_empty = build_empty_df(rhs.dtypes)
          aligned, _ = l_empty.align(r_empty, axis=1)
          l_dtypes = r_dtypes = aligned.dtypes
          l_col_val = r_col_val = parse_index(
              aligned.columns, store_data=True
          )
          l_shape[1] = r_shape[1] = len(l_dtypes)
      else:
          l_dtypes, r_dtypes = lhs.dtypes, rhs.dtypes
          l_col_val, r_col_val = lhs.columns_value, rhs.columns_value
  
      l_kws = {
          "index_value": l_idx_val,
          "dtypes": l_dtypes,
          "shape": tuple(l_shape),
          "columns_value": l_col_val,
      }
      r_kws = {
          "index_value": r_idx_val,
          "dtypes": r_dtypes,
          "shape": tuple(r_shape),
          "columns_value": r_col_val,
      }
      return self.new_tileables([lhs, rhs], kws=[l_kws, r_kws])
  
imports: from typing import Any, Optional, Union
  import numpy
  from ...None import opcodes
  from ...core import get_output_types, recursive_tile, OutputType
  from ...serialization.serializables import AnyField, KeyField, StringField, Int16Field, Int64Field
  from ...typing import TileableType
  from ..operands import DataFrameOperand, DataFrameOperandMixin
  from ..align import align_dataframe_dataframe, align_dataframe_series, align_series_series
  from ..core import IndexValue
  from ..utils import validate_axis, parse_index, build_empty_df
label_desc: Use image node_id 4 for calling the DataFrameAlign obj's underlying member method code with example usage: obj._call_dataframe_dataframe(lhs, rhs) and returns: self