constructorsSupplier.get().firstOrNull { c -> jvmSignature == c.signature?.toString() }?.let { predicate.match(it) } ?: false


private
fun hasFunctionAttribute(functionsSupplier: Supplier<MutableList<KmFunction>>, jvmSignature: String, predicate: AttributePredicate) =
    functionsSupplier.get().firstOrNull {
        jvmSignature == it.signature?.toString()
    }?.let { predicate.match(it) } ?: false


private

| *Type*     | *String* |
| *Required* | *Yes*    |

### AUTHPARAMS

Indicates STS API Authorization information. If you are familiar with AWS Signature V4 Authorization header, this STS API supports signature V4 authorization as mentioned [here](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html)

### DurationSeconds

    /**
     * Buffer type for credential information.
     */
    int CREDENTIAL_TYPE = 2;
    /**
     * Buffer type for server checksum signature.
     */
    int SERVER_CHECKSUM = 6;
    /**
     * Buffer type for privilege server (KDC) checksum signature.
     */
    int PRIVSVR_CHECKSUM = 7;

    /**
     * Buffer type for client name information.
     */
    int CLIENT_NAME_TYPE = 0xA;
    /**

        method.addParameter('param1', new TypeMetaData('ParamType'))
        method.addParameter('param2', new TypeMetaData('ParamType2'))

        expect:
        method.signature == 'ReturnType method(ParamType param1, ParamType2 param2)'
        method.overrideSignature == 'method(ParamType, ParamType2)'
    }

    def formatsOverrideSignatureUsingRawParameterTypes() {

  ASSERT_EQ(func_->record->fdef().signature().attr().size(), 2);
  EXPECT_EQ(func_->record->fdef().signature().attr(0).name(), "v1");
  EXPECT_EQ(func_->record->fdef().signature().attr(0).type(), "int");
  EXPECT_EQ(func_->record->fdef().signature().attr(1).name(), "v2");
  EXPECT_EQ(func_->record->fdef().signature().attr(1).type(), "int");
}

			fv:   defaultFormVals.Clone().Set(xhttp.AmzSignature, "my-signature"),
		},
		{
			name: "XIgnoreFoo does not have to appear in policy",
			fv:   defaultFormVals.Clone().Set("X-Ignore-Foo", "my-foo-value"),
		},
		{
			name: "File does not have to appear in policy",
			fv:   defaultFormVals.Clone().Set("File", "file-value"),
		},
		{
			name: "Signature does not have to appear in policy",

	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), jwtAlgorithm)
}

// Verify if request has AWS Signature Version '4'.
func isRequestSignatureV4(r *http.Request) bool {
	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV4Algorithm)
}

// Verify if request has AWS Signature Version '2'.
func isRequestSignatureV2(r *http.Request) bool {

If you want to play with JWT tokens and see how they work, check <a href="https://jwt.io/" class="external-link" target="_blank">https://jwt.io</a>.

## Install `PyJWT` { #install-pyjwt }

	// Dummy putBucketACL
	AmzACL = "x-amz-acl"

	// Signature V4 related constants.
	AmzContentSha256        = "X-Amz-Content-Sha256"
	AmzDate                 = "X-Amz-Date"
	AmzAlgorithm            = "X-Amz-Algorithm"
	AmzExpires              = "X-Amz-Expires"
	AmzSignedHeaders        = "X-Amz-SignedHeaders"
	AmzSignature            = "X-Amz-Signature"
	AmzCredential           = "X-Amz-Credential"

      }
      return builder.build();
    }
  }

  private static final class Signature {
    private final String name;
    private final ImmutableList<Class<?>> parameterTypes;

    Signature(Method method) {
      this(method.getName(), ImmutableList.copyOf(method.getParameterTypes()));
    }

    Signature(String name, ImmutableList<Class<?>> parameterTypes) {
      this.name = name;