code: def _sqrt(a_a, b_b):
      return (a_a + b_b) ** 0.5
  
imports: import warnings
  from collections.abc import Sequence
  from copy import copy
  from copy import deepcopy
  import numpy
  import pandas
  from scipy.fftpack import next_fast_len
  from scipy.interpolate import CubicSpline
  from scipy.stats.mstats import mquantiles
  from xarray import apply_ufunc
  from ..None import _log
  from ..utils import conditional_jit, conditional_vect, conditional_dask
  from .density_utils import histogram
label_desc: Use image node_id 12 for calling a global function with example usage: _sqrt(a_a, b_b) and returns: unknown