Here is a list of all documented variables with links to the class documentation for each member:

m_aliasId : AWSGameLift::AWSGameLiftCreateSessionRequest, AWSGameLift::AWSGameLiftSearchSessionsRequest
m_configurationName : AWSGameLift::AWSGameLiftStartMatchmakingRequest
m_fleetId : AWSGameLift::AWSGameLiftCreateSessionRequest, AWSGameLift::AWSGameLiftSearchSessionsRequest
m_idempotencyToken : AWSGameLift::AWSGameLiftCreateSessionRequest
m_location : AWSGameLift::AWSGameLiftSearchSessionsRequest
m_logPaths : AWSGameLift::GameLiftServerProcessDesc
m_placementId : AWSGameLift::AWSGameLiftCreateSessionOnQueueRequest
m_players : AWSGameLift::AWSGameLiftStartMatchmakingRequest
m_port : AWSGameLift::GameLiftServerProcessDesc
m_queueName : AWSGameLift::AWSGameLiftCreateSessionOnQueueRequest