class_docstr: Not sure if I can avoid the state machine here
class_docstr_tok: ["Not","sure","if","I","can","avoid","the","state","machine","here"]
code: def _infer_daily_rule(self) -> str | None:
      annual_rule = self._get_annual_rule()
      if annual_rule:
          nyears = self.ydiffs[0]
          month = MONTH_ALIASES[self.rep_stamp.month]
          alias = f"{annual_rule}-{month}"
          return _maybe_add_count(alias, nyears)
  
      quarterly_rule = self._get_quarterly_rule()
      if quarterly_rule:
          nquarters = self.mdiffs[0] / 3
          mod_dict = {0: 12, 2: 11, 1: 10}
          month = MONTH_ALIASES[mod_dict[self.rep_stamp.month % 3]]
          alias = f"{quarterly_rule}-{month}"
          return _maybe_add_count(alias, nquarters)
  
      monthly_rule = self._get_monthly_rule()
      if monthly_rule:
          return _maybe_add_count(monthly_rule, self.mdiffs[0])
  
      if self.is_unique:
          return self._get_daily_rule()
  
      if self._is_business_daily():
          return "B"
  
      wom_rule = self._get_wom_rule()
      if wom_rule:
          return wom_rule
  
      return None
  
imports: from __future__ import annotations
  import numpy
  from pandas._libs.algos import unique_deltas
  from pandas._libs.tslibs import Timestamp, get_unit_from_dtype, periods_per_day, tz_convert_from_utc
  from pandas._libs.tslibs.ccalendar import DAYS, MONTH_ALIASES, MONTH_NUMBERS, MONTHS, int_to_weekday
  from pandas._libs.tslibs.fields import build_field_sarray, month_position_check
  from pandas._libs.tslibs.offsets import DateOffset, Day, to_offset
  from pandas._libs.tslibs.parsing import get_rule_month
  from pandas._typing import npt
  from pandas.util._decorators import cache_readonly
  from pandas.core.dtypes.common import is_datetime64_dtype, is_numeric_dtype, is_period_dtype, is_timedelta64_dtype
  from pandas.core.dtypes.generic import ABCIndex, ABCSeries
  from pandas.core.algorithms import unique
label_desc: Use image node_id 14 for calling the _FrequencyInferer obj's underlying member method code with example usage: obj._infer_daily_rule() and returns: None, _maybe_add_count, _maybe_add_count, _maybe_add_count, self, str, wom_rule