How to use the ijson.backend.BUFSIZE function in ijson

    def lexer(socket, buf_size=ijson.backend.BUFSIZE):
        data = socket.recv() if IS_WEBSOCKET else socket.recv(buf_size)
        if not data:
            return

        buf = data[1:-1].encode('utf-8') if IS_WEBSOCKET else data
        pos = 0
        discarded = 0
        while True:
            match = LEXEME_RE.search(buf, pos)
            if pos < len(buf) and match:
                lexeme = match.group()
                if lexeme == b'"':
                    pos = match.start()
                    start = pos + 1
                    while True:
                        try:

    def basic_parse(response, buf_size=ijson.backend.BUFSIZE):
        '''
        Iterator yielding unprefixed events.

        Parameters:

        - response: a stream response from requests
        '''
        lexer = iter(IncrementalJsonParser.lexer(response, buf_size))
        for value in ijson.backend.parse_value(lexer):
            yield value
        try:
            next(lexer)
        except StopIteration:
            pass
        else:
            raise ijson.common.JSONError('Additional data')

    def lexer(response, buf_size=ijson.backend.BUFSIZE):
        it = response.iter_content(buf_size)
        data = next(it, None)
        if data is None:
            yield None
        buf = data.decode('utf-8')
        pos = 0
        discarded = 0
        while True:
            match = LEXEME_RE.search(buf, pos)
            if pos < len(buf) and match:
                lexeme = match.group()
                if lexeme == '"':
                    pos = match.start()
                    start = pos + 1
                    while True:
                        try: