How to use the macholib.util.iter_platform_files function in macholib

def run(self, platfiles=None, contents=None):
        mm = self.mm
        if contents is None:
            contents = '@executable_path/..'
        if platfiles is None:
            platfiles = iter_platform_files(self.base)

        for fn in platfiles:
            mm.run_file(fn)

        while self.pending:
            fmwk, files = self.pending.popleft()
            ref = mm.findNode(fmwk)
            for fn in files:
                mm.run_file(fn, caller=ref)

        changemap = {}
        skipcontents = os.path.join(os.path.dirname(self.dest), '')
        machfiles = []

        for node in mm.flatten(has_filename_filter):
            machfiles.append(node)

def copy_framework(self, info):
        dest = os.path.join(self.dest, info['shortname'] + '.framework')
        destfn = os.path.join(self.dest, info['name'])
        src = os.path.join(info['location'], info['shortname'] + '.framework')
        if not os.path.exists(dest):
            self.mergetree(src, dest)
            self.pending.append((destfn, iter_platform_files(dest)))
        return destfn

def copy_framework(self, info):
        dest = os.path.join(self.dest, info['shortname'] + '.framework')
        destfn = os.path.join(self.dest, info['name'])
        src = os.path.join(info['location'], info['shortname'] + '.framework')
        if not os.path.exists(dest):
            self.mergetree(src, dest)
            self.pending.append((destfn, iter_platform_files(dest)))
        return destfn

def copy_framework(self, info):
        dest = os.path.join(self.dest, info['shortname'] + '.framework')
        destfn = os.path.join(self.dest, info['name'])
        src = os.path.join(info['location'], info['shortname'] + '.framework')
        if not os.path.exists(dest):
            self.mergetree(src, dest)
            self.pending.append((destfn, iter_platform_files(dest)))
        return destfn

def run(self, platfiles=None, contents=None):
        mm = self.mm
        if contents is None:
            contents = '@executable_path/..'
        if platfiles is None:
            platfiles = iter_platform_files(self.base)

        for fn in platfiles:
            mm.run_file(fn)

        while self.pending:
            fmwk, files = self.pending.popleft()
            ref = mm.findNode(fmwk)
            for fn in files:
                mm.run_file(fn, caller=ref)

        changemap = {}
        skipcontents = os.path.join(os.path.dirname(self.dest), '')
        machfiles = []

        for node in mm.flatten(has_filename_filter):
            machfiles.append(node)

def run(self, platfiles=None, contents=None):
        mm = self.mm
        if contents is None:
            contents = '@executable_path/..'
        if platfiles is None:
            platfiles = iter_platform_files(self.base)

        for fn in platfiles:
            mm.run_file(fn)

        while self.pending:
            fmwk, files = self.pending.popleft()
            ref = mm.findNode(fmwk)
            for fn in files:
                mm.run_file(fn, caller=ref)

        changemap = {}
        skipcontents = os.path.join(os.path.dirname(self.dest), '')
        machfiles = []

        for node in mm.flatten(has_filename_filter):
            machfiles.append(node)