GetRoleCredentials
	Initialize stack step
		RegisterServiceMetadata
		legacyEndpointContextSetter
		SetLogger
		OperationInputValidation
	Serialize stack step
		setOperationInput
		ResolveEndpoint
		OperationSerializer
	Build stack step
		ClientRequestID
		ComputeContentLength
		UserAgent
		RecursionDetection
	Finalize stack step
		ResolveAuthScheme
		GetIdentity
		ResolveEndpointV2
		disableHTTPS
		Retry
		RetryMetricsHeader
		setLegacyContextSigningOptions
		Signing
	Deserialize stack step
		AddRawResponseToMetadata
		ErrorCloseResponseBody
		CloseResponseBody
		ResponseErrorWrapper
		RequestIDRetriever
		OperationDeserializer
		RecordResponseTiming
		RequestResponseLogger