class_docstr: Mapping that only sees ``WeightVariable`` instances (i.e., weights).
code: def __init__(self, attributes):
      super().__init__(attributes, WeightVariable)
  
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 1 to create a new WeightMapping object from inherited base classes: AttributeMapping with example: obj = WeightMapping(attributes)