code: def sl_bc_jac(ya, yb, p):
      dbc_dya = np.zeros((3, 2))
      dbc_dya[0, 0] = 1
      dbc_dya[2, 1] = 1
  
      dbc_dyb = np.zeros((3, 2))
      dbc_dyb[1, 0] = 1
  
      dbc_dp = np.zeros((3, 1))
      dbc_dp[2, 0] = -1
  
      return dbc_dya, dbc_dyb, dbc_dp
  
imports: import sys
  import numpy
  from numpy.testing import assert_, assert_array_equal, assert_allclose, assert_equal
  from pytest import raises
  from scipy.sparse import coo_matrix
  from scipy.special import erf
  from scipy.integrate._bvp import modify_mesh, estimate_fun_jac, estimate_bc_jac, compute_jac_indices, construct_global_jac, solve_bvp
label_desc: Use image node_id 10 for calling a global function with example usage: sl_bc_jac(ya, yb, p) and returns: dbc_dya,  dbc_dyb,  dbc_dp