code: def bentcigar(x: np.ndarray) -> float:
      """Classical example of ill conditioned function, but bent."""
      y = np.asarray(
          [
              x[i] ** (1 + 0.5 * np.sqrt(x[i]) * (i - 1) / (len(x) - 1))
              if x[i] > 0.0
              else x[i]
              for i in range(len(x))
          ]
      )
      return float(y[0]) ** 2 + 1000000.0 * sphere(y[1:])
  
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 11 for calling a global function with example usage: bentcigar(x) and returns: unknown