class_docstr: Just leaves the missing values untouched.
class_docstr_tok: ["Just","leaves","the","missing","values","untouched","."]
code: def __call__(self, values: np.ndarray) -> np.ndarray:
      return values
  
imports: from typing import List, Optional, Union, Type
  import numpy
  import pandas
  from gluonts.core.component import validated
  from gluonts.dataset.common import DataEntry
  from gluonts.dataset.field_names import FieldName
  from gluonts.time_feature import TimeFeature
  from ._base import MapTransformation, SimpleTransformation
label_desc: Use image node_id 1 for calling the LeavesMissingValues obj's underlying member method code with example usage: obj.__call__(values) and returns: values