How to use the cget.util.cget_dir function in cget

def find_cmake(p, start):
    if p and not os.path.isabs(p):
        absp = util.actual_path(p, start)
        if os.path.exists(absp): return absp
        else:
            x = util.cget_dir('cmake', p)
            if os.path.exists(x): return x
            elif os.path.exists(x + '.cmake'): return x + '.cmake'
    return p

def configure(self, src_dir, defines=None, generator=None, install_prefix=None, test=True, variant=None):
        self.prefix.log("configure")
        util.mkdir(self.build_dir)
        args = [
            src_dir, 
            '-DCGET_CMAKE_DIR={}'.format(util.cget_dir('cmake')), 
            '-DCGET_CMAKE_ORIGINAL_SOURCE_FILE={}'.format(os.path.join(src_dir, self.cmake_original_file))
        ]
        for d in defines or []:
            args.append('-D{0}'.format(d))
        if generator is not None: args = ['-G', generator] + args
        if self.prefix.verbose: args.extend(['-DCMAKE_VERBOSE_MAKEFILE=On'])
        if test: args.extend(['-DBUILD_TESTING=On'])
        else: args.extend(['-DBUILD_TESTING=Off'])
        args.extend(['-DCMAKE_BUILD_TYPE={}'.format(variant or 'Release')])
        if install_prefix is not None: args.extend(['-DCMAKE_INSTALL_PREFIX=' + install_prefix])
        try:
            self.cmake(args=args, cwd=self.build_dir, use_toolchain=True)
        except:
            self.show_logs()
            raise