class_docstr: Stateful operator
code: def __call__(
      self, data: numpy.ndarray
  ) -> NamedTuple("Outputs", [("norm_data", numpy.ndarray)]):
      norm_embedding = data[0] / LA.norm(data[0])
      Outputs = NamedTuple("Outputs", [("norm_data", numpy.ndarray)])
      return Outputs(norm_embedding)
  
imports: from typing import NamedTuple
  from towhee.operator import Operator
  from numpy import linalg
  import numpy
label_desc: Use image node_id 2 for calling the NormDataOperator obj's underlying member method code with example usage: obj.__call__(data) and returns: Outputs