function str$1(a) {
    return "quat2(" + a[0] + ", " + a[1] + ", " + a[2] + ", " + a[3] + ", " + a[4] + ", " + a[5] + ", " + a[6] + ", " + a[7] + ")";
  }
Returns a string representation of a dual quaternion

@param {ReadonlyQuat2} a dual quaternion to represent as a string
@returns {String} string representation of the dual quat