python codfe, always getting <Fault SOAP-ENV:Server: Could not find element by name: user_names>

>>> proxy.methods["change_password"].inparams[0].name

 

u'user_names'

 

>>> proxy.methods["change_password"].inparams[0].type

 

(u'urn:iControl', u'Common.StringSequence')

 

 

if check the inparams using the above code, we can see the inparams' type are u'Common.StringSequence',

 

what is this "type"?

 

on the API docs, https://devcentral.f5.com/wiki/iControl.Common.ashx

 

this is a alias to "String [] ", so how can I create a object on this tyope and pass it to any method which requires inparams?