code: def size_container_folding(value):
      
      if len(value) < MAX_LEN:
          if isinstance(value, list):
              return ast.List([to_ast(elt) for elt in value], ast.Load())
          elif isinstance(value, tuple):
              return ast.Tuple([to_ast(elt) for elt in value], ast.Load())
          elif isinstance(value, set):
              return ast.Set([to_ast(elt) for elt in value])
          elif isinstance(value, dict):
              keys = [to_ast(elt) for elt in value.keys()]
              values = [to_ast(elt) for elt in value.values()]
              return ast.Dict(keys, values)
          elif isinstance(value, np.ndarray):
              return ast.Call(func=ast.Attribute(
                  ast.Name(mangle('numpy'), ast.Load(), None),
                  'array',
                  ast.Load()),
                  args=[to_ast(totuple(value.tolist())),
                        ast.Attribute(
                            ast.Name(mangle('numpy'), ast.Load(), None),
                            value.dtype.name,
                            ast.Load())],
                  keywords=[])
          else:
              raise ConversionError()
      else:
          raise ToNotEval()
docs: Convert value to ast expression if size is not too big.
  
      Converter for sized container.