class_docstr: (Untyped) input containing fundamental properties of all inputs to an
  Operation:
class_docstr_tok: ["(","Untyped",")","input","containing","fundamental","properties","of","all","inputs","to","an","Operation",":"]
docstr: const (bool):
      True if the InputType has to be constant / materialized at compile time.
      Const InputType is semantically equivalent to attribute. By
      default False. Read-only.
  
  optional (bool):
      True to allow user not to specify this input and rely on default
      values (defined in default_inputs).
  
  Note: _InputType should not be directly instantiated. Only its subclasses may
  be instantiated.
docstr_tok: ["const","(","bool",")",":","True","if","the","InputType","has","to","be","constant","\/","materialized","at","compile","time",".","Const","InputType","is","semantically","equivalent","to","attribute",".","By","default","False",".","Read-only",".","optional","(","bool",")",":","True","to","allow","user","not","to","specify","this","input","and","rely","on","default","values","(","defined","in","default_inputs",")",".","Note",":","_InputType","should","not","be","directly","instantiated",".","Only","its","subclasses","may","be","instantiated","."]
code: def __init__(self, const=False, optional=False):
      """
      const (bool):
          True if the InputType has to be constant / materialized at compile time.
          Const InputType is semantically equivalent to attribute. By
          default False. Read-only.
  
      optional (bool):
          True to allow user not to specify this input and rely on default
          values (defined in default_inputs).
  
      Note: _InputType should not be directly instantiated. Only its subclasses may
      be instantiated.
      """
      self.const = const
      self.optional = optional
  
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 to create a new _InputType object  with example: obj = _InputType(const, optional)