class_docstr: A property accepting a value of some other type while having undefined default. 
code: def __init__(
      self,
      type_param: TypeOrInst[Property[T]],
      *,
      default: Init[T] = Intrinsic,
      help: str | None = None,
  ) -> None:
      super().__init__(type_param, default=default, help=help)
  
imports: from __future__ import annotations
  import logging
  from typing import Any, TypeVar, Union
  from ...util.deprecation import deprecated
  from .bases import Init, Property, SingleParameterizedProperty, TypeOrInst
  from .primitive import Float, Int
  from .singletons import Intrinsic, Undefined
label_desc: Use image node_id 1 to create a new Positive object from inherited base classes: SingleParameterizedProperty with example: obj = Positive(type_param)