class_docstr: Base class for Bokeh property instances, which can be added to Bokeh
  Models.
  
  Args:
      default (obj, optional) :
          A default value for attributes created from this property to have.
  
      help (str or None, optional) :
          A documentation string for this property. It will be automatically
          used by the :ref:`bokeh.sphinxext.bokeh_prop` extension when
          generating Spinx documentation. (default: None)
class_docstr_tok: ["Base","class","for","Bokeh","property","instances",",","which","can","be","added","to","Bokeh","Models",".","Args",":","default","(","obj",",","optional",")",":","A","default","value","for","attributes","created","from","this","property","to","have",".","help","(","str","or","None",",","optional",")",":","A","documentation","string","for","this","property",".","It","will","be","automatically","used","by","the",":","ref",":","`","bokeh.sphinxext.bokeh_prop","`","extension","when","generating","Spinx","documentation",".","(","default",":","None",")"]
docstr: Clone this property and allow to override ``default`` and ``help``. 
docstr_tok: ["Clone","this","property","and","allow","to","override","``","default","``","and","``","help","``","."]
code: def __call__(
      self, *, default: Init[T] = Intrinsic, help: str | None = None
  ) -> Property[T]:
      """Clone this property and allow to override ``default`` and ``help``."""
      default = self._default if default is Intrinsic else default
      help = self._help if help is None else help
      prop = self.__class__(default=default, help=help)
      prop.alternatives = list(self.alternatives)
      prop.assertions = list(self.assertions)
      return prop
  
imports: from __future__ import annotations
  import logging
  from copy import copy
  from typing import TYPE_CHECKING, Any, Callable, ClassVar, TypeVar, Union
  from ...util.dependencies import uses_pandas
  from ...util.strings import nice_join
  from ..has_props import HasProps
  from ._sphinx import property_link, register_type_link, type_link
  from .descriptor_factory import PropertyDescriptorFactory
  from .descriptors import PropertyDescriptor
  from .singletons import Intrinsic, IntrinsicType, Undefined, UndefinedType
label_desc: Use image node_id 6 for calling the Property obj's underlying member method code with example usage: obj.__call__() and returns: prop