code: def test_connection_pattern(self):
      node = self.monitored_output.owner
      connection_pattern = self.breakpointOp.connection_pattern(node)
      expected_pattern = [[0, 0, 0], [1, 0, 0], [0, 1, 0], [0, 0, 1]]
  
      assert connection_pattern == expected_pattern
  
file_path: pytensor/tests/test_breakpoint.py
imports: import numpy
  from pytensor.breakpoint import PdbBreakpoint
  from pytensor.compile.function import function
  from pytensor.gradient import grad
  from pytensor.tensor.math import dot, gt
  from pytensor.tensor.type import fmatrix, fscalar
  from tests import unittest_tools
label_desc: Use image node_id 5 for calling the TestPdbBreakpoint obj's underlying member method code with example usage: obj.test_connection_pattern() without return types