How to use the amplify.agent.common.context.context.log.error function in amplify

def report():
    # get pseudo file  /proc//status
    proc_status = '/proc/%d/status' % os.getpid()
    try:
        t = open(proc_status)
        v = t.read()
        t.close()
    except:
        context.log.error('mem', exc_info=True)
        return 0, 0

    # get VmKey line e.g. 'VmRSS:  9999  kB\n ...'
    results = []
    for vm_key in ['VmSize:', 'VmRSS:']:
        i = v.index(vm_key)
        _ = v[i:].split(None, 3)  # whitespace
        if len(_) < 3:
            results.append(0)  # invalid format?
        # convert Vm value to bytes
        results.append(int(float(_[1]) * scale[_[2]] / 1024))

    return results

self.listener_setup_attempts
                    )
                )
                self.listener_setup_attempts = 0  # reset attempt counter
            except AmplifyAddresssAlreadyInUse as e:
                if self.listener_setup_attempts < 3:
                    context.log.warning(
                        'failed to start listener during "SyslogTail.__iter__()" due to "%s", '
                        'will try again (attempts: %s)' % (
                            e.__class__.__name__,
                            self.listener_setup_attempts
                        )
                    )
                    context.log.debug('additional info:', exc_info=True)
                else:
                    context.log.error(
                        'failed to start listener %s times, will not try again' % self.listener_setup_attempts
                    )
                    context.log.debug('additional info:', exc_info=True)

        current_cache = copy.deepcopy(self.cache)
        context.log.debug('syslog tail returned %s lines captured from %s' % (len(current_cache), self.name))
        self.cache.clear()
        return iter(current_cache)

backpressure_error = HTTP503Error(e)
                context.backpressure_time = int(time.time() + backpressure_error.delay)
                context.log.debug(
                    'back pressure delay %s added (next talk: %s)' % (
                        backpressure_error.delay,
                        context.backpressure_time
                    )
                )
            else:
                self.cloud_talk_fails += 1
                self.cloud_talk_delay = exponential_delay(self.cloud_talk_fails)
                context.log.debug(
                    'cloud talk delay set to %s (fails: %s)' % (self.cloud_talk_delay, self.cloud_talk_fails)
                )

            context.log.error('could not connect to cloud', exc_info=True)
            raise AmplifyCriticalException()

        # check agent version status
        if context.version_semver <= cloud_response.versions.obsolete:
            context.log.error(
                'agent is obsolete - cloud will refuse updates until it is updated (version: %s, current: %s)' %
                (tuple_to_version(context.version_semver), tuple_to_version(cloud_response.versions.current))
            )
            self.stop()
        elif context.version_semver <= cloud_response.versions.old:
            context.log.warn(
                'agent is old - update is recommended (version: %s, current: %s)' %
                (tuple_to_version(context.version_semver), tuple_to_version(cloud_response.versions.current))
            )

        # set capabilities

else:
                r = self.session.post(
                    url,
                    data=payload,
                    timeout=timeout,
                    verify=self.verify_ssl_cert,
                    proxies=self.proxies
                )
            http_code = r.status_code
            r.raise_for_status()
            result = r.json() if json else r.text
            request_id = r.headers.get('X-Amplify-ID', None)
            return result
        except Exception as e:
            if log:
                context.log.error('failed %s "%s", exception: "%s"' % (method.upper(), url, e.message))
                context.log.debug('', exc_info=True)
            raise e
        finally:
            end_time = time.time()
            log_method = context.log.info if log else context.log.debug
            context.log.debug(result)
            log_method(
                '[%s] %s %s %s %s %s %.3f' % (
                    request_id,
                    method,
                    url,
                    http_code,
                    len(payload),
                    len(result),
                    end_time - start_time
                )

max children reached: 0
            slow requests:        0
        """
        try:
            with gevent.Timeout(10, TimeoutException):
                fcgi = self._connect()
                resp = fcgi(self.env, lambda x, y: None)
        except TimeoutException:
            context.log.error(
                'pool communication at "%s" timed out' %
                self.connection.__str__()
            )  # use .__str__() because of namedtuple
            context.log.debug('additional info:', exc_info=True)
            resp = ('500', [], '', '')
        except:
            context.log.error(
                'failed to communicate with pool at "%s"' %
                self.connection.__str__()
            )  # use .__str__() because of namedtuple
            context.log.debug('additional info:', exc_info=True)
            resp = ('500', [], '', '')

        status, headers, out, err = resp

        if status.startswith('200'):
            return out
        else:
            context.log.debug(
                'non-success returned by fcgi (status: %s)' % status
            )
            context.log.debug(
                'additional info:\n'

def handle_exception(self, method, exception):
        context.log.error('%s failed to collect: %s raised %s%s' % (
            self.short_name,  method.__name__, exception.__class__.__name__,
            ' (in container)' if self.in_container else ''
        ))
        context.log.debug('additional info:', exc_info=True)

# if not parsed - go to the next line
                if parsed is None:
                    continue

                pid, ppid, cmd = parsed  # unpack values

                # match master process
                if 'master process' in cmd:
                    if not launch_method_supported("php-fpm", ppid):
                        continue

                    try:
                        conf_path = MASTER_PARSER(cmd)
                    except:
                        context.log.error(
                            'failed to find conf_path for %s' % cmd
                        )
                        context.log.debug('additional info:', exc_info=True)
                    else:
                        # calculate local_id
                        local_id = hashlib.sha256('%s_%s' % (cmd, conf_path)).hexdigest()

                        if pid not in masters:
                            masters[pid] = {'workers': []}

                        masters[pid].update({
                            'cmd': cmd.strip(),
                            'conf_path': conf_path,
                            'pid': pid,
                            'local_id': local_id
                        })

try:
            cmd = "/usr/sbin/mysqld"
            conf_path = "/etc/mysql/my.cnf"

            # calculate local_id
            local_id = hashlib.sha256('%s_%s' % (cmd, conf_path)).hexdigest()
            results.append({
                'cmd': 'unknown',
                'conf_path': 'unknown',
                'pid': 'unknown',
                'local_id': local_id
            })
        except Exception as e:
            # log error
            exception_name = e.__class__.__name__
            context.log.error('failed to parse remote mysql results due to %s' % exception_name)
            context.log.debug('additional info:', exc_info=True)

        return results

context.log.error('failed to check stub_status url %s' % self.object.stub_status_url)
            context.log.debug('additional info', exc_info=True)
            stub_body = None

        if not stub_body:
            return

        # parse body
        try:
            gre = STUB_RE.match(stub_body)
            if not gre:
                raise AmplifyParseException(message='stub status %s' % stub_body)
            for field in ('connections', 'accepts', 'handled', 'requests', 'reading', 'writing', 'waiting'):
                stub[field] = int(gre.group(field))
        except:
            context.log.error('failed to parse stub_status body')
            raise

        # store some variables for further use
        stub['dropped'] = stub['accepts'] - stub['handled']

        # gauges
        self.object.statsd.gauge('nginx.http.conn.current', stub['connections'])
        self.object.statsd.gauge('nginx.http.conn.active', stub['connections'] - stub['waiting'])
        self.object.statsd.gauge('nginx.http.conn.idle', stub['waiting'])
        self.object.statsd.gauge('nginx.http.request.writing', stub['writing'])
        self.object.statsd.gauge('nginx.http.request.reading', stub['reading'])
        self.object.statsd.gauge('nginx.http.request.current', stub['reading'] + stub['writing'])

        # counters
        counted_vars = {
            'nginx.http.request.count': 'requests',

'uname': None,
            'network': {
                'interfaces': [],
                'default': None
            }
        })

        for method in (
            self.uname,
            self.network,
        ):
            try:
                method(meta)
            except Exception as e:
                exception_name = e.__class__.__name__
                context.log.error('failed to collect meta %s due to %s' % (method.__name__, exception_name))
                context.log.debug('additional info:', exc_info=True)

        self.object.metad.meta(meta)