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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 ParseConversationRow(self, parser_mediator, query, row, **unused_kwargs):
 """Parses a conversation row from the database. Args: parser_mediator (ParserMediator):
 mediates interactions between parsers and other components, such as storage and dfvfs. query (str):
 query that created the row. row (sqlite3.Row):
 row resulting from query. """

    query_hash = hash(query)

    event_data = TangoAndroidConversationEventData()
    event_data.conversation_identifier = self._GetRowValue(
        query_hash, row, 'conv_id')

    # TODO: payload is a base64 encoded binary blob, we need to find the
    # structure to extract the relevant bits.
    # event_data.payload = self._GetRowValue(query_hash, row, 'payload')

    date_time = dfdatetime_semantic_time.NotSet()
    event = time_events.DateTimeValuesEvent(
        date_time, definitions.TIME_DESCRIPTION_NOT_A_TIME)
    parser_mediator.ProduceEventWithEventData(event, event_data)