Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 1234567]

▼NIBM
▼NCloud
▼NSDK
▼NCore
▼NAuthentication
▼NBasicAuth
CBasicAuthenticator	This class implements support for Basic Authentication. The main purpose of this authenticator is to construct the Authorization header and then add it to each outgoing REST API request.
▼NBearer
CBearerTokenAuthenticator	This class implements support for Bearer Token Authentication. The main purpose of this authenticator is to construct the Authorization header and then add it to each outgoing REST API request.
▼NCp4d
CCloudPakForDataAuthenticator	This class implements support for the CP4D authentication mechanism.
CCloudPakForDataToken	This class holds relevant info re: an CP4D access token for use by the CP4DAuthenticator class.
CCloudPakForDataTokenResponse	This class models a response received from the CloudPakForData "get token" API.
▼NIam
CIamAuthenticator	This class implements support for the IAM authentication mechanism.
CIamToken
CIamTokenResponse
▼NNoAuth
CNoAuthAuthenticator	This class is a placeholder implementation for performing no authentication of outgoing REST API requests.
CAuthenticator
CConfigBasedAuthenticatorFactory
CIAuthenticator
▼NHttp
▼NExceptions
CIBMError
CIBMErrorConverter
CServiceResponseException
▼NExtensions
CStreamExtension
▼NFilters
CErrorFilter
CIHttpFilter
CDetailedResponse
CHttpMediaType
CIBMHttpClient
CIClient
CIRequest
CIResponse
CRequest
▼NModel
CDynamicModel	This class is the base class for generated models with restricted additional properties.
CFileWithMetadata	A file and its associated metadata.
▼NService
CIBMService
CIIBMService
▼NSockets
CAWebSocketClient
CServiceState
CWebSocketClient
▼NUtil
▼NAttributes
CDescriptionAttribute
CCredential	The Credentials.
CCredentialUtils
CUtility	Utility classes for the IBM Cloud SDKs.
CVcapCredential	The Credential to a single service.
CVcapCredentials	Vcap credentials object.
CConstants	This class holds constant values for the SDK.