code: function encodeStylePoint_(imageStyle, encodedStyles) {
    if (imageStyle instanceof olStyleCircle) {
      const radius = imageStyle.getRadius();
      if (encodedStyles.length > 0) {
        encodedStyles.push('\'');
      }
      encodedStyles.push(encodeURIComponent(`pointRadius*${radius}`));
      const fillStyle = imageStyle.getFill();
      if (fillStyle !== null) {
        encodeStyleFill_(fillStyle, encodedStyles);
      }
      const strokeStyle = imageStyle.getStroke();
      if (strokeStyle !== null) {
        encodeStyleStroke_(strokeStyle, encodedStyles);
      }
    }
  }
docs: Transform an {@link import("ol/style/Circle.js").default} into a logical sequence of
  characters and put the result into the given encoded styles's array.
  @param {import("ol/style/Image.js").default} imageStyle Image style.
  @param {Array<string>} encodedStyles Encoded styles array.
  @private
  @hidden