isBridge(vertices) {
    if (this.vertices.size > 2) {
      return true;
    }

    for (let vertexId of this.vertices) {
      if (vertices[vertexId].value.rings.length > 2) {
        return true;
      }
    }

    return false;
  }
Checks whether or not this ring connection is a bridge in a bridged ring.

@param {Vertex[]} vertices The array of vertices associated with the current molecule.
@returns {Boolean} A boolean indicating whether or not this ring connection is a bridge.