class_docstr: Abstract base class used for modules in a pipeline.
class_docstr_tok: ["Abstract","base","class","used","for","modules","in","a","pipeline","."]
docstr: Get the class attribute values for certain keys.
docstr_tok: ["Get","the","class","attribute","values","for","certain","keys","."]
code: def _get_values(self, keys):
      """Get the class attribute values for certain keys."""
      values = {}
      for x in keys:
          value = self.__dict__[x]
          if value != "" and value is not None and value not in values:
              values[x] = value
      return values
  
imports: from __future__ import annotations
  import logging
  from abc import ABCMeta
  from functools import wraps
label_desc: Use image node_id 2 for calling the Module obj's underlying member method code with example usage: obj._get_values(keys) and returns: values