You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bob_init.m
    path of file: ./repos/ethx-autonomous-mobile-robot/exercise/solution2/code/common/vrep
    
    the code of the file until where you have to start completion: function [bodyDiameter wheelDiameter interWheelDist scannerPose] = bob_init(connection)

    global isoctave;
    
	% start some data streaming from V-REP to Matlab:
    if ~isoctave
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_encoders',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_velocities',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_pose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_ghostPose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_laserData',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_targetGhostPose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
       

    
function [bodyDiameter wheelDiameter interWheelDist scannerPose] = bob_init(connection)

    global isoctave;
    
	% start some data streaming from V-REP to Matlab:
    if ~isoctave
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_encoders',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_velocities',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_pose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_ghostPose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_laserData',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
        connection.vrep.simxGetStringSignal(connection.clientID,strcat('Bob_targetGhostPose',num2str(connection.robotNb)),connection.vrep.simx_opmode_streaming);
       
        % get some robot constants:
        
        if nargout > 0
            [result,bodyDiameter]=connection.vrep.simxGetFloatSignal(connection.clientID,strcat('Bob_bodyDiameter',num2str(connection.robotNb)),connection.vrep.simx_opmode_oneshot_wait);
            if (result~=connection.vrep.simx_error_noerror)
                err = MException('VREP:RemoteApiError', ...
                                'simxGetFloatSignal failed');
                throw(err);
            end