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: ibslike.m
    path of file: ./repos/vbmc/utils
    
    the code of the file until where you have to start completion: function [nlogL,nlogLvar,exitflag,output] = ibslike(fun,params,respMat,designMat,options,varargin)
%IBSLIKE Unbiased negative log-likelihood via inverse binomial sampling.
%   NLOGL = IBLLIKE(FUN,PARAMS,RESPMAT,DESIGNMAT) returns unbias
    
function exitflag = runtest1(options)

Nreps = 1e3;
RMSE_tol = 2/sqrt(Nreps);

% Binomial probability model
p_model = exp(linspace(log(1e-3),log(1),10));
fun = @(x,dmat) rand(size(dmat)) < x;   % Simulating function
rmat = fun(1,NaN);

fprintf('\n');
fprintf('TEST 1: Using IBS to compute log(p) of Bernoulli distributions with %d repeats.\n',Nreps);
fprintf('We consider p = %s.\n',mat2str(p_model,3));

options.Nreps = Nreps;
options.NegLogLikeThreshold = Inf;

nlogL = zeros(1,numel(p_model));
nlogLvar = zeros(1,numel(p_model));
for iter = 1:numel(p_model)
    [nlogL(iter),nlogLvar(iter)] = ibslike(fun,p_model(iter),rmat,[],options);
end