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: CliffFrontLeftSensorRoomba.m
    path of file: ./repos/Robotics-Toolbox/rvctools/release10.3.1/robot/interfaces/@Create
    
    the code of the file until where you have to start completion: function [state] = CliffFrontLeftSensorRoomba(serPort);
%[state] = CliffFrontLeftSensorRoomba(serPort)
% Specifies the state of the Cliff Front Left sensor
% Either triggered or not triggered

% By; Joel Esposito, US Naval Academy, 2011

%Initialize preliminary return values
state = nan;

    
function [state] = CliffFrontLeftSensorRoomba(serPort);
%[state] = CliffFrontLeftSensorRoomba(serPort)
% Specifies the state of the Cliff Front Left sensor
% Either triggered or not triggered

% By; Joel Esposito, US Naval Academy, 2011

%Initialize preliminary return values
state = nan;
try
    
%Flush Buffer    
N = serPort.BytesAvailable();
while(N~=0) 
fread(serPort,N);
N = serPort.BytesAvailable();
end