code: def _arr_to_scalar(x):
      # If x is a numpy array, return x.item().  This will
      # fail if the array has more than one element.
      return x.item() if isinstance(x, np.ndarray) else x
  
imports: import numpy
  from ._hessian_update_strategy import BFGS
  from ._differentiable_functions import VectorFunction, LinearVectorFunction, IdentityVectorFunction
  from ._optimize import OptimizeWarning
  from warnings import warn, catch_warnings, simplefilter, filterwarnings
  from scipy.sparse import issparse
label_desc: Use image node_id 1 for calling a global function with example usage: _arr_to_scalar(x) and returns: unknown