Not able to resolve JsonPath when it includes a where condition

I have specified this as my condition

conditions: {
all: [{
fact: 'displayMessage',
operator: 'equal',
value: "iphone",
path:"$.childobj.phoneNumbers.[?(@.number=='0123-4567-8888')].type"
}]

And this is the fact -

const facts = { displayMessage: {"childobj" : { "age" : 45 , "phoneNumbers": [
{
"type": "iphone",
"number": "0123-4567-8888"
},
{
"type": "home",
"number": "0123-4567-8910"
}
]} } }

It is not working..
Can you please tell me if this is supported or not?
It is working if i specify this path - $.childobj.phoneNumbers.[0].type where no condition is specified. Whereas in the above path I have specified the condition.