code: def longest_strike_below_mean(x):
      if not isinstance(x, (np.ndarray, pd.Series)):
          x = np.asarray(x)
      return (
          np.max(get_length_sequences_where(x <= np.mean(x)))
          if x.size > 0
          else 0
      )
  
imports: import pandas
  import numpy
  from statsmodels.tsa.stattools import acf, adfuller, pacf
  import itertools
  from statsmodels.tsa.ar_model import AR
  from scipy.signal import cwt, find_peaks_cwt, ricker, welch
  from scipy.stats import linregress
  import scipy.stats
  from scipy.stats import kurtosis
  from scipy.stats import skew
  import numpy
  from scipy import signal, integrate
  from scipy.interpolate import interp1d
  import math
  from statsmodels.tools.sm_exceptions import MissingDataError
  from numpy.linalg import LinAlgError
label_desc: Use image node_id 18 for calling a global function with example usage: longest_strike_below_mean(x) and returns: unknown