class_docstr: Base class used to filter attributes based on their expected class.
code: def __delitem__(self, key):
      self.attributes.remove(key)
  
imports: from collections.abc import MutableMapping
  from numbers import Integral
  from hls4ml.model.types import NamedType, Source, TensorVariable, WeightVariable
  from hls4ml.utils.string_utils import convert_to_pascal_case
label_desc: Use image node_id 6 for calling the AttributeMapping obj's underlying member method code with example usage: obj.__delitem__(key) without return types