code: def time_strftime_custom(self, freq):
      self.per.strftime("%b. %d, %Y was a %A")
  
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 9 for calling the PeriodUnaryMethods obj's underlying member method code with example usage: obj.time_strftime_custom(freq) without return types