code: def _get_gaussian_kernel_2d(gaussian_filter_x, gaussian_filter_y):
      """Compute 2D Gaussian kernel given 1D kernels."""
      gaussian_kernel = tf.matmul(gaussian_filter_x, gaussian_filter_y)
      return gaussian_kernel
  
file_path: addons/tensorflow_addons/image/filters.py
imports: import tensorflow
  from tensorflow_addons.image import utils
  from tensorflow_addons.utils import keras_utils
  from tensorflow_addons.utils.types import TensorLike
  from typing import Optional, Union, List, Tuple, Iterable
label_desc: Use image node_id 5 for calling a global function with example usage: _get_gaussian_kernel_2d(gaussian_filter_x, gaussian_filter_y) and returns: gaussian_kernel