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: fibonacciS2Grid_find.m
    path of file: ./repos/mtex/geometry/@fibonacciS2Grid/private
    
    the code of the file until where you have to start completion: function varargout = fibonacciS2Grid_find(fibgrid, v)
% return index of the grid point closest to v
%
% Input
%   fibgrid     - @fibobacciS2Grid
%   v           - @vector3d
%
% Output:
%   ind         - int32
%   dist        - double

% get parameters of v
n = (numel(fibgrid.x) - 1) / 2;
s = size(v, 1);
theta = v.theta;
rho = mod(v.rho, 2*pi);

% initialize the returning values of the function
ind = zeros(s, 1);
dist = zeros(s, 1);

% we need this to avoid massive overhead when calling v(k) for all k
fibgrid_xyz = fibgrid.xyz;
v_xyz = v.xyz;

% the resolution is slightly bigger than the max separation between 2 nodes
epsilon = fibgrid.resolution;

% sort rho  and get the corresponding index vectors
% if the grid is large it may be useful to save the precise rho values
% during construction in the options and retrieve them here 
try 

    
function varargout = fibonacciS2Grid_find(fibgrid, v)
% return index of the grid point closest to v
%
% Input
%   fibgrid     - @fibobacciS2Grid
%   v           - @vector3d
%
% Output:
%   ind         - int32
%   dist        - double

% get parameters of v
n = (numel(fibgrid.x) - 1) / 2;
s = size(v, 1);
theta = v.theta;
rho = mod(v.rho, 2*pi);

% initialize the returning values of the function
ind = zeros(s, 1);
dist = zeros(s, 1);

% we need this to avoid massive overhead when calling v(k) for all k
fibgrid_xyz = fibgrid.xyz;
v_xyz = v.xyz;

% the resolution is slightly bigger than the max separation between 2 nodes
epsilon = fibgrid.resolution;

% sort rho  and get the corresponding index vectors
% if the grid is large it may be useful to save the precise rho values
% during construction in the options and retrieve them here 
try 
  rhoGrid = fibgrid.opt.rho;
catch 
  rhoGrid = mod(fibgrid.rho, 2*pi);
end