code: def instancenorm_1_constraints(pattern):
      passed = True
      passed = passed and _common_pattern1_constraints(pattern)
      passed = passed and _instancenorm_constraints(pattern)
      return passed
  
file_path: coremltools/coremltools/converters/mil/experimental/passes/generic_layernorm_instancenorm_pattern_fusion.py
imports: import os
  import numpy
  from coremltools.converters.mil import Builder
  from coremltools.converters.mil.experimental.passes.generic_pass_infrastructure import register_generic_pass
  from coremltools.converters.mil.mil import get_new_symbol
label_desc: Use image node_id 2 for calling a global function with example usage: instancenorm_1_constraints(pattern) and returns: passed