class_docstr: Native python function.
class_docstr_tok: ["Native","python","function","."]
code: def _is_compatible(self, v):
      return callable(v.val)
  
imports: from collections import OrderedDict
  from coremltools.converters.mil.mil import types
  from coremltools.converters.mil.mil.var import InternalVar
label_desc: Use image node_id 1 for calling the PyFunctionInputType obj's underlying member method code with example usage: obj._is_compatible(v) and returns: callable