class_docstr: A filter which ensures that time series have the specified minimum length.
code: def __call__(self, items: List[Item]) -> List[Item]:
      return [
          item
          for item in items
          if len(item[FieldName.TARGET]) >= self.length
      ]
  
imports: from abc import ABC, abstractmethod
  from typing import Any, Dict, List
  import numpy
  from gluonts.dataset.field_names import FieldName
label_desc: Use image node_id 2 for calling the MinLengthFilter obj's underlying member method code with example usage: obj.__call__(items) and returns: unknown