docstr: Parse a value of this type.
docstr_tok: ["Parse","a","value","of","this","type","."]
code: def parse_data(self, data_str):
      """
      Parse a value of this type.
      """
      date_str = data_str.strip().strip("'").strip('"')
      if date_str == "?":
          return np.datetime64("NaT", self.datetime_unit)
      else:
          dt = datetime.datetime.strptime(date_str, self.date_format)
          return np.datetime64(dt).astype(
              "datetime64[%s]" % self.datetime_unit
          )
  
imports: import re
  import datetime
  import numpy
  import csv
  import ctypes
label_desc: Use image node_id 4 for calling the DateAttribute obj's underlying member method code with example usage: obj.parse_data(data_str) and returns: np, np