static isDynamicSizeValue_(vint) {
    const EbmlParser = shaka.dash.EbmlParser;
    const BufferUtils = shaka.util.BufferUtils;

    for (const dynamicSizeConst of EbmlParser.DYNAMIC_SIZES) {
      if (BufferUtils.equal(vint, new Uint8Array(dynamicSizeConst))) {
        return true;
      }
    }

    return false;
  }
Checks if the given variable sized integer represents a dynamic size value.
@param {!Uint8Array} vint The variable sized integer.
@return {boolean} true if |vint| represents a dynamic size value,
  false otherwise.
@private