code: def astype(self, dtype, copy=True):
      dtype = pandas_dtype(dtype)
  
      if isinstance(dtype, DateDtype):
          data = self.copy() if copy else self
      else:
          data = self.to_numpy(
              dtype=dtype, copy=copy, na_value=dt.date.min
          )
  
      return data
  
imports: from __future__ import annotations
  import datetime
  from typing import TYPE_CHECKING, Any, cast
  import numpy
  from pandas.core.dtypes.dtypes import register_extension_dtype
  from pandas.api.extensions import ExtensionArray, ExtensionDtype
  from pandas.api.types import pandas_dtype
label_desc: Use image node_id 3 for calling the DateArray obj's underlying member method code with example usage: obj.astype(dtype, copy) and returns: data