code: def initialize_network(neutron):
      
      body_sample = {
          "network": {
              "name": 'provision_bob',
              "admin_state_up": True,
          }
      }
      netw = neutron.create_network(body=body_sample)['network']
      body_create_subnet = {
          'subnets': [{
              'name': 'rdo-m-subnet',
              'cidr': '192.0.2.0/24',
              'ip_version': 4,
              'network_id': netw['id'],
              'host_routes': [{
                  'destination': '169.254.169.254/32',
                  'nexthop': '192.0.2.240'
              }],
              'gateway_ip': '192.0.2.1',
              'dns_nameservers': ['8.8.8.8', '8.8.4.4'],
              'allocation_pools': [{'start': '192.0.2.30', 'end': '192.0.2.199'}]}]}
      response = neutron.create_subnet(body=body_create_subnet)
      subnet_id = response['subnets'][0]['id']
      router = neutron.list_routers(name='router').get('routers')[0]
      response = neutron.add_interface_router(router['id'], {'subnet_id': subnet_id})
docs: Initialize an OVB network called provision_bob.