code: def _multiply_jacobians(jac1, jac2):
      """Multiplies two Jacobians."""
      js1, jp1 = jac1
      js2, jp2 = jac2
      return _block_matmul(js1, js2), _block_add(
          _block_matmul(js1, jp2), jp1
      )
  
file_path: tf-quant-finance/tf_quant_finance/math/custom_loops.py
imports: import tensorflow.compat.v2
  from tf_quant_finance import utils
label_desc: Use image node_id 6 for calling a global function with example usage: _multiply_jacobians(jac1, jac2) and returns: _block_matmul,  _block_add