code: def doublelinearslope(x: np.ndarray) -> float:
      """We decided to use two linear slopes rather than having a constraint artificially added for
      not having the optimum at infinity."""
      return float(np.abs(np.sum(x)))
  
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 19 for calling a global function with example usage: doublelinearslope(x) and returns: float