count::Int=0)
    res = []
    sort!(walker, by=by, rev=rev)
    if !iszero(oid)
        push!(walker, oid)
    elseif !isempty(range)
        push!(walker, range)
    else
        push_head!(walker)
    end

    repo = repository(walker)
    for val in (count == 0 ? walker : Iterators.take(walker, count))
        Base.push!(res, f(val, repo))
    end
    return res
end

    ### Starting State
    The walker starts standing at the left end of the terrain with the hull
    horizontal, and both legs in the same position with a slight knee angle.

    ### Episode Termination
    The episode will terminate if the hull gets in contact with the ground or
    if the walker exceeds the right end of the terrain length.

    ### Arguments

## 5.6.0 (2018-05-31)

### Bug fixes

Fix a bug in the walker that caused a crash when walking an object pattern spread.

## 5.5.1 (2018-03-06)

### Bug fixes

Fix regression in walker causing property values in object patterns to be walked as expressions.

## 5.5.0 (2018-02-27)

### Bug fixes

Support object spread in the AST walker.

## 5.4.1 (2018-02-02)

### Bug fixes

`base` argument provides the fallback walker functions for node types
that aren't handled in the `functions` object. If not given, the
default walkers will be used.

**make**`(functions, base)` builds a new walker object by using the
walker functions in `functions` and filling in the missing ones by
taking defaults from `base`.

**full**`(node, callback, base, state)` does a 'full' walk over a

import 'package:stocks/stock_data.dart' as stock_data;

Element? findElementOfExactWidgetTypeGoingDown(Element node, Type targetType) {
  void walker(Element child) {
    if (child.widget.runtimeType == targetType) {
      throw child;
    }
    child.visitChildElements(walker);
  }
  try {
    walker(node);
  } on Element catch (result) {
    return result;
  }
  return null;
}

}

const findShadowRoots = (root: Node): Node[] => {
  // get the document for this node
  const doc = root.getRootNode({ composed: true }) as Document
  // create a walker for efficiently traversing the
  // dom of this node
  const walker = doc.createTreeWalker(root, NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_DOCUMENT_FRAGMENT, {
    acceptNode (node) {
      // we only care about nodes which have a shadow root

    by adding another set of legs making it possible for the robot to walker forward instead of
    hop. Like other Mujoco environments, this environment aims to increase the number of independent state
    and control variables as compared to the classic control environments. The walker is a
    two-dimensional two-legged figure that consist of four main body parts - a single torso at the top

      "integrity": "sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw=="
    },
    "estree-walker": {
      "version": "2.0.2",
      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
      "integrity": "sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w=="
    },
    "is-reference": {

		tm, _ = x.DateTime()
	}

	if !d.noLatLong {
		lat, long, _ = x.LatLong()
	}

	walker := &exifWalker{x: x, vals: make(map[string]any), includeMatcher: d.includeFieldsRe, excludeMatcher: d.excludeFieldsrRe}
	if err = x.Walk(walker); err != nil {
		return
	}

	ex = &ExifInfo{Lat: lat, Long: long, Date: tm, Tags: walker.vals}

	return
}

  const isNil = (array) => !(Array.isArray(array) && array.length);

  function _walker(parent, children, level) {
    cb(parent, children, level);
    children.forEach(item => {
      if (item[lazyKey]) {
        cb(item, null, level + 1);
        return;
      }
      const children = item[childrenKey];
      if (!isNil(children)) {
        _walker(item, children, level + 1);
      }
    });
  }