How to use the minidump.minidumpfile.MinidumpFile function in minidump

def parse_buff(buffer):
		mf = MinidumpFile()
		mf.file_handle = buffer
		mf._parse()
		return mf

def parse_bytes(data):
		return MinidumpFile.parse_buff(io.BytesIO(data))

def parse_minidump_external(handle):
		"""
		Parses LSASS minidump file based on the file object.
		File object can really be any object as longs as 
		it implements read, seek, tell functions with the 
		same parameters as a file object would.

		handle: file like object
		"""
		minidump = MinidumpFile.parse_external(handle)
		reader = minidump.get_reader().get_buffered_reader()
		sysinfo = KatzSystemInfo.from_minidump(minidump)
		mimi = pypykatz(reader, sysinfo)
		mimi.start()
		return mimi

def parse_external(file_handle, filename = ''):
		"""
		External file handle must be an object that exposes basic file IO functionality
		that you'd get by python's file buffer (read, seek, tell etc.)
		"""
		mf = MinidumpFile()
		mf.filename = filename
		mf.file_handle = file_handle
		mf._parse()
		return mf

def parse(filename):
		mf = MinidumpFile()
		mf.filename = filename
		mf.file_handle = open(filename, 'rb')
		mf._parse()
		return mf