code: def setup(self, size, freq):
      arr = np.arange(10, dtype="i8").repeat(size // 10)
      self.i8values = arr
  
imports: import numpy
  from pandas._libs.tslibs.period import Period, periodarr_to_dt64arr
  from pandas.tseries.frequencies import to_offset
  from .tslib import _sizes, _tzs, tzlocal_obj
label_desc: Use image node_id 1 for calling the TimePeriodArrToDT64Arr obj's underlying member method code with example usage: obj.setup(size, freq) without return types