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: ft_platform_supports.m
    path of file: ./repos/spm/external/fieldtrip/connectivity/private
    
    the code of the file until where you have to start completion: function tf = ft_platform_supports(what, varargin)

% FT_PLATFORM_SUPPORTS returns a boolean indicating whether the current platform
% supports a specific capability
%
% Use as
%   status = ft_platform_supports(what)
% or
%   status = ft_platform_supports('matlabversion', min_version, max_version)
%
% The following values are allowed for the 'what' parameter, which means means that
% the specific feature explained on the right is supported:
%
%   'which-all'                     which(...,'all')
%   'exists-in-private-directory'   exists(...) will look in the /private subdirectory to see if a file exists
%   'onCleanup'                     onCleanup(...)
%   'alim'                          alim(...)
%   'int32_logical_operations'      bitand(a,b) with a, b of type int32
%   'graphics_objects'              graphics system is object-oriented
%   'libmx_c_interface'             libmx is supported through mex in the C-language (recent MATLAB versions only support C++)
%   'images'                        all image processing functions in FieldTrip's external/images directory
%   'signal'                        all signal processing functions in FieldTrip's external/signal directory

    
function tf = ft_platform_supports(what, varargin)

% FT_PLATFORM_SUPPORTS returns a boolean indicating whether the current platform
% supports a specific capability
%
% Use as
%   status = ft_platform_supports(what)
% or
%   status = ft_platform_supports('matlabversion', min_version, max_version)
%
% The following values are allowed for the 'what' parameter, which means means that
% the specific feature explained on the right is supported:
%
%   'which-all'                     which(...,'all')
%   'exists-in-private-directory'   exists(...) will look in the /private subdirectory to see if a file exists
%   'onCleanup'                     onCleanup(...)
%   'alim'                          alim(...)
%   'int32_logical_operations'      bitand(a,b) with a, b of type int32
%   'graphics_objects'              graphics system is object-oriented
%   'libmx_c_interface'             libmx is supported through mex in the C-language (recent MATLAB versions only support C++)
%   'images'                        all image processing functions in FieldTrip's external/images directory
%   'signal'                        all signal processing functions in FieldTrip's external/signal directory
%   'stats'                         all statistical functions in FieldTrip's external/stats directory
%   'program_invocation_name'       program_invocation_name() (GNU Octave)
%   'singleCompThread'              start MATLAB with -singleCompThread
%   'nosplash'                      start MATLAB with -nosplash
%   'nodisplay'                     start MATLAB with -nodisplay
%   'nojvm'                         start MATLAB with -nojvm
%   'no-gui'                        start GNU Octave with --no-gui
%   'RandStream.setGlobalStream'    RandStream.setGlobalStream(...)
%   'RandStream.setDefaultStream'   RandStream.setDefaultStream(...)
%   'rng'                           rng(...)
%   'rand-state'                    rand('state')
%   'urlread-timeout'               urlread(..., 'Timeout', t)
%   'griddata-vector-input'         griddata(...,...,...,a,b) with a and b vectors
%   'griddata-v4'                   griddata(...,...,...,...,...,'v4') with v4 interpolation support
%   'uimenu'                        uimenu(...)
%   'weboptions'                    weboptions(...)
%   'parula'                        parula(...)
%   'datetime'                      datetime structure
%   'html'                          html rend