code: def is_variadic(val):
      return issubclass(type(val), sm.Symbol) and val.name[0] == "*"
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/coremltools/converters/mil/mil/types/symbolic.py
imports: import sympy
  import numpy
  import six
label_desc: Use image node_id 3 for calling a global function with example usage: is_variadic(val) and returns: unknown