code: def rosen(x, xo=None, yo=None):
      "rosen shifted to have minimum cost at yo and solved x at xo"
      xo = x if xo is None else (np.ones(len(x)) + x - xo)
      return mm.rosen(xo) + (0 if yo is None else yo)
  
imports: import mystic.models
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: rosen(x, xo, yo) and returns: unknown