code: def jump(self, x: tp.ArrayLike) -> float:
      n = len(x)
      m = n // 4
      o = n - self.onemax(x)
      if o == n or o <= n - m:
          return n - m - o
      return o
  
imports: from math import exp, sqrt, tanh
  import numpy
  import nevergrad.common.typing
  from nevergrad.common.decorators import Registry
label_desc: Use image node_id 5 for calling the DiscreteFunction obj's underlying member method code with example usage: obj.jump(x) and returns: o, unknown