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: fgt_read_Ttl.m
    path of file: ./repos/fgt-SDK/MATLAB/Toolbox/SDK/Fluigent
    
    the code of the file until where you have to start completion: function [ state, error_code ] = fgt_read_Ttl( TtlIndex )
%FGT_READ_TTL Description Read TTL port (BNC port) if set as input.

    
function [ state, error_code ] = fgt_read_Ttl( TtlIndex )
%FGT_READ_TTL Description Read TTL port (BNC port) if set as input.
% 
% state = fgt_read_Ttl( TtlIndex ) returns the current state of the
% selected TTL port: 1 if an edge was detected, 0 otherwise
%
% [ state, error_code ] = fgt_read_Ttl( TtlIndex ) also returns the error
% code returned by the library function.
%
% See also:
%     fgt_set_TtlMode

[error_code, state] = LowLevel.fgt_read_Ttl(TtlIndex);
manage_generic_status('fgt_read_Ttl', error_code);
error_code = fgt_ERROR_CODE(error_code);
end