code: def get(solver_name):
      """Returns the class of the solver registered under given name.
  
      :param solver_name: name of the solver
      :returns: the solver class"""
      global __registered_solvers
      return __registered_solvers[solver_name]
  
label_desc: Use image node_id 2 for calling a global function with example usage: get(solver_name) and returns: __registered_solvers