How to listen onchange event from filter-chip?

[mond210]

hi, these days i wrote some code with this components and now i need to connect codes between htmlevents.
however md-filter-chip looks like nothing to listen value when selection changed. (onclick can access value by event.target.selected but it was past value)
is there any way to listen selection? or am i edit MultiActionChip class and able to contribute?

[mond210]

it look like already solved by #5113 and temporary able to use selected value by this function

async(event)=>{
  const chip = event.target;
  await chip.updateComplete;
  // can use chip.selected value
}