code: func VerifyPSS(pub *PublicKey, hash crypto.Hash, hashed []byte, sig []byte, opts *PSSOptions) error {
  	return verifyPSS(pub, hash, hashed, sig, opts.saltLength())
  }
docs: // VerifyPSS verifies a PSS signature.
  // hashed is the result of hashing the input message using the given hash
  // function and sig is the signature. A valid signature is indicated by
  // returning a nil error. The opts argument may be nil, in which case sensible
  // defaults are used.