code: def get_floatingips_count(context, filters=None):
      
      LOG.info('get_floatingips_count for tenant %s filters %s' %
               (context.tenant_id, filters))
  
      if filters is None:
          filters = {}
  
      filters['_deallocated'] = False
      filters['address_type'] = ip_types.FLOATING
      count = db_api.ip_address_count_all(context, filters)
  
      LOG.info('Found %s floating ips for tenant %s' % (count,
                                                        context.tenant_id))
      return count
docs: Return the number of floating IPs.
  
      :param context: neutron api request context
      :param filters: a dictionary with keys that are valid keys for
          a floating IP as listed in the RESOURCE_ATTRIBUTE_MAP object
          in neutron/api/v2/attributes.py.  Values in this dictionary
          are an iterable containing values that will be used for an exact
          match comparison for that value.  Each result returned by this
          function will have matched one of the values for each key in
          filters.
  
      :returns: The number of floating IPs that are accessible to the tenant who
          submits the request (as indicated by the tenant id of the context)
          as well as any filters.
  
      NOTE: this method is optional, as it was not part of the originally
            defined plugin API.