code: def generate_class_string(
      typename,
      props,
      description,
      namespace,
      prop_reorder_exceptions=None,
      max_props=None,
  ):
      """Dynamically generate class strings to have nicely formatted docstrings,
      keyword arguments, and repr.
      Inspired by http://jameso.be/2013/08/06/namedtuple.html
      Parameters
      ----------
      typename
      props
      description
      namespace
      prop_reorder_exceptions
      Returns
      -------
      string
      """
      # TODO _prop_names, _type, _namespace, and available_properties
      # can be modified by a Dash JS developer via setattr
      # TODO - Tab out the repr for the repr of these components to make it
      # look more like a hierarchical tree
      # TODO - Include "description" "defaultValue" in the repr and docstring
      #
      # TODO - Handle "required"
      #
      # TODO - How to handle user-given `null` values? I want to include
      # an expanded docstring like Dropdown(value=None, id=None)
      # but by templating in those None values, I have no way of knowing
      # whether a property is None because the user explicitly wanted
      # it to be `null` or whether that was just the default value.
      # The solution might be to deal with default values better although
      # not all component authors will supply those.
      c = '''class {typename}(Component):
      """{docstring}"""
      _children_props = {children_props}
      _base_nodes = {base_nodes}
      _namespace = '{namespace}'
      _type = '{typename}'
      @_explicitize_args
      def __init__(self, {default_argtext}):
          self._prop_names = {list_of_valid_keys}
          self._valid_wildcard_attributes =\
              {list_of_valid_wildcard_attr_prefixes}
          self.available_properties = {list_of_valid_keys}
          self.available_wildcard_properties =\
              {list_of_valid_wildcard_attr_prefixes}
          _explicit_args = kwargs.pop('_explicit_args')
          _locals = locals()
          _locals.update(kwargs)  # For wildcard attrs and excess named props
          args = {args}
          {required_validation}
          super({typename}, self).__init__({argtext})
  '''
  
      filtered_props = (
          filter_props(props)
          if (
              prop_reorder_exceptions is not None
              and typename in prop_reorder_exceptions
          )
          or (
              prop_reorder_exceptions is not None
              and "ALL" in prop_reorder_exceptions
          )
          else reorder_props(filter_props(props))
      )
      wildcard_prefixes = repr(parse_wildcards(props))
      list_of_valid_keys = repr(list(map(str, filtered_props.keys())))
      docstring = create_docstring(
          component_name=typename,
          props=filtered_props,
          description=description,
          prop_reorder_exceptions=prop_reorder_exceptions,
      ).replace("\r\n", "\n")
      required_args = required_props(filtered_props)
      is_children_required = "children" in required_args
      required_args = [
          arg for arg in required_args if arg != "children"
      ]
  
      prohibit_events(props)
  
      # pylint: disable=unused-variable
      prop_keys = list(props.keys())
      if "children" in props and "children" in list_of_valid_keys:
          prop_keys.remove("children")
          default_argtext = "children=None, "
          args = "{k: _locals[k] for k in _explicit_args if k != 'children'}"
          argtext = "children=children, **args"
      else:
          default_argtext = ""
          args = "{k: _locals[k] for k in _explicit_args}"
          argtext = "**args"
  
      if len(required_args) == 0:
          required_validation = ""
      else:
          required_validation = f"""
          for k in {required_args}:
              if k not in args:
                  raise TypeError(
                      'Required argument `' + k + '` was not specified.')
          """
  
      if is_children_required:
          required_validation += """
          if 'children' not in _explicit_args:
              raise TypeError('Required argument children was not specified.')
          """
  
      default_arglist = [
          (
              f"{p:s}=Component.REQUIRED"
              if props[p]["required"]
              else f"{p:s}=Component.UNDEFINED"
          )
          for p in prop_keys
          if not p.endswith("-*")
          and p not in python_keywords
          and p != "setProps"
      ]
  
      if max_props:
          final_max_props = max_props - (
              1 if "children" in props else 0
          )
          if len(default_arglist) > final_max_props:
              default_arglist = default_arglist[:final_max_props]
              docstring += (
                  "\n\n"
                  "Note: due to the large number of props for this component,\n"
                  "not all of them appear in the constructor signature, but\n"
                  "they may still be used as keyword arguments."
              )
  
      default_argtext += ", ".join(default_arglist + ["**kwargs"])
      nodes = collect_nodes(
          {k: v for k, v in props.items() if k != "children"}
      )
  
      return dedent(
          c.format(
              typename=typename,
              namespace=namespace,
              filtered_props=filtered_props,
              list_of_valid_wildcard_attr_prefixes=wildcard_prefixes,
              list_of_valid_keys=list_of_valid_keys,
              docstring=docstring,
              default_argtext=default_argtext,
              args=args,
              argtext=argtext,
              required_validation=required_validation,
              children_props=nodes,
              base_nodes=filter_base_nodes(nodes) + ["children"],
          )
      )
  
imports: from collections import OrderedDict
  import copy
  import os
  from textwrap import fill, dedent
  from dash.development.base_component import _explicitize_args
  from dash.exceptions import NonExistentEventException
  from ._all_keywords import python_keywords
  from ._collect_nodes import collect_nodes, filter_base_nodes
  from .base_component import Component
label_desc: Use image node_id 1 for calling a global function with example usage: generate_class_string(typename, props, description, namespace, prop_reorder_exceptions, max_props) and returns: dedent