<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _CreateDictReader(self, line_reader):
 """Returns a reader that processes each row and yields dictionaries. csv.DictReader does this job well for single-character delimiters; parsers that need multi-character delimiters need to override this method. Args: line_reader (iter):
 yields lines from a file-like object. Returns: iter: a reader of dictionaries, as returned by csv.DictReader(). """

    delimiter = self.DELIMITER
    quotechar = self.QUOTE_CHAR
    magic_test_string = self._MAGIC_TEST_STRING
    # Python 3 csv module requires arguments to constructor to be of type str.
    if py2to3.PY_3:
      delimiter = delimiter.decode(self._encoding)
      quotechar = quotechar.decode(self._encoding)
      magic_test_string = magic_test_string.decode(self._encoding)

    return csv.DictReader(
        line_reader, delimiter=delimiter, fieldnames=self.COLUMNS,
        quotechar=quotechar, restkey=magic_test_string,
        restval=magic_test_string)