code: def test_round_division_by_zero_raises(self):
      ts = Timestamp("2016-01-01")
  
      msg = "Division by zero in rounding"
      with pytest.raises(ValueError, match=msg):
          ts.round("0ns")
  
imports: from hypothesis import given, strategies
  import numpy
  import pytest
  import pytz
  from pandas._libs import lib
  from pandas._libs.tslibs import NaT, OutOfBoundsDatetime, Timedelta, Timestamp, iNaT, to_offset
  from pandas._libs.tslibs.dtypes import NpyDatetimeUnit
  from pandas._libs.tslibs.period import INVALID_FREQ_ERR_MSG
  import pandas._testing
label_desc: Use image node_id 1 for calling the TestTimestampRound obj's underlying member method code with example usage: obj.test_round_division_by_zero_raises() without return types