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: fovea.m
    path of file: ./repos/gkaModelEye/model/eye/species/+canine/+landmarks
    
    the code of the file until where you have to start completion: function fovea = fovea( eye )
% Returns the fovea landmark sub-field of an eye model structure
%
% Syntax

    
function fovea = fovea( eye )
% Returns the fovea landmark sub-field of an eye model structure
%
% Syntax
%  fovea = drasdo.landmarks.fovea( eye )
%


% Save this value
fovea.degField = [0; 0; 0];


end