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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def indicators(self, indicator_data):
 """Generator for indicator values. Some indicator such as Files (hashes) and Custom Indicators can have multiple indicator values (e.g. md5, sha1, sha256). This method provides a generator to iterate over all indicator values. Both the **summary** field and the individual indicator fields (e.g. **md5**, **sha1**, **sha256**) are supported. For indicators that have only one value such as **ip** or **hostName** the generator will only return the one result. .. code-block:: python :linenos: :lineno-start: 1 # the individual indicator JSON from the API for i in resource.indicators(indicator_data):
 print(i.get('type')) # md5, sha1, sha256, etc print(i.get('value')) # hash or custom indicator value .. Warning:: This method could break for custom indicators that have " : " in the value of the indicator while using the summary field. .. Note:: For ``/v2/indicators`` and ``/v2/indicators/bulk/json`` API endpoints only one hash is returned for a file Indicator even if there are multiple in the platform. If all hashes are required the ``/v2/indicators/files`` or ``/v2/indicators/files/<hash>`` endpoints will provide all hashes. Args: indicator_data (dict):
 The indicator dictionary. Returns: (dictionary):
 A dict containing the indicator type and value. """

        # indicator_list = []
        for indicator_field in self.value_fields:
            if indicator_field == 'summary':
                indicators = self.tcex.expand_indicators(indicator_data.get('summary'))
                if indicator_data.get('type') == 'File':
                    hash_patterns = {
                        'md5': re.compile(r'^([a-fA-F\d]{32})$'),
                        'sha1': re.compile(r'^([a-fA-F\d]{40})$'),
                        'sha256': re.compile(r'^([a-fA-F\d]{64})$'),
                    }
                    for i in indicators:
                        if not i:
                            continue

                        i = i.strip()  # clean up badly formatted summary string
                        i_type = None
                        if hash_patterns['md5'].match(i):
                            i_type = 'md5'
                        elif hash_patterns['sha1'].match(i):
                            i_type = 'sha1'
                        elif hash_patterns['sha256'].match(i):
                            i_type = 'sha256'
                        else:
                            msg = u'Cannot determine hash type: "{}"'.format(
                                indicator_data.get('summary')
                            )
                            self.tcex.log.warning(msg)

                        data = {'type': i_type, 'value': i}
                        yield data
                else:
                    resource = getattr(
                        self.tcex.resources, self.tcex.safe_rt(indicator_data.get('type'))
                    )(self.tcex)
                    values = resource.value_fields

                    index = 0
                    for i in indicators:
                        if i is None:
                            continue

                        i = i.strip()  # clean up badly formatted summary string
                        # TODO: remove workaround for bug in indicatorTypes API endpoint
                        if len(values) - 1 < index:
                            break

                        data = {'type': values[index], 'value': i}
                        index += 1
                        yield data
            else:
                if indicator_data.get(indicator_field) is not None:
                    yield {'type': indicator_field, 'value': indicator_data.get(indicator_field)}