We ended up adding this internally:
`

### Mgmt Interface

https://dashboard.meraki.com/api_docs#return-the-management-interface-settings-for-a-device

def getdevmgmt(apikey, networkid,serial, suppressprint=False):
calltype = "Managment Interface"
geturl = "{0}/networks/{1}/devices/{2}/managementInterfaceSettings".format(
str(base_url), str(networkid), str(serial)
)
headers = {
"x-cisco-meraki-api-key": format(str(apikey)),
"Content-Type": "application/json",
}
dashboard = requests.get(geturl, headers=headers)
result = __returnhandler(
dashboard.status_code, dashboard.text, calltype, suppressprint
)
return result

Update the Managment interface configuration

https://dashboard.meraki.com/api_docs#update-the-management-interface-settings-for-a-device

def updatedevmgmt(
apikey, networkid,serial, mgmtsettings, suppressprint=False
):
# mgmtsettings = {'wan1': {'0': {'wanEnabled': 'enabled'},
# '2': {'usingStaticIp': False}}}
# mgmtsettings = {'wan2': {'0': {'wanEnabled': 'enabled'},
# '2': {'usingStaticIp': True}}}
# mgmtsettings = {'wan1': {'usingStaticIp': True, 'staticIp': '10.0.0.2', 'staticSubnetMask': '255.255.255.0', 'staticGatewayIp': '10.0.0.1', 'staticDns': ['192.168.1.1', '192.168.1.2'], 'vlan': 2}}

calltype = "Managment Interface"
puturl = "{0}/networks/{1}/devices/{2}/managementInterfaceSettings".format(
    str(base_url), str(networkid), str(serial)
)

headers = {
    "x-cisco-meraki-api-key": format(str(apikey)),
    "Content-Type": "application/json",
}

putdata = mgmtsettings
dashboard = requests.put(puturl, data=json.dumps(putdata), headers=headers)
result = __returnhandler(
    dashboard.status_code, dashboard.text, calltype, suppressprint
)
return result

`

We will add it as a pull request as well.

from dashboard-api-python.