class_docstr: This class allows the user to filter multi-column data sets by specifying
  multiple criteria
  
  Wraps methods from DataFilterParameter: setFields, generateMask,
  filterData, and describe.
class_docstr_tok: ["This","class","allows","the","user","to","filter","multi-column","data","sets","by","specifying","multiple","criteria","Wraps","methods","from","DataFilterParameter",":","setFields",",","generateMask",",","filterData",",","and","describe","."]
code: def parameters(self):
      return self.params
  
imports: from collections import OrderedDict
  import numpy
  from ..None import functions
  from ..None import parametertree
  from ..Qt import QtCore
label_desc: Use image node_id 2 for calling the DataFilterWidget obj's underlying member method code with example usage: obj.parameters() and returns: self