tcn.integrations.plugininstance.v1alpha1.PluginInstance.Value.CompositeVal(CompositeVal)

represents the individual parts of a string, where some of the parts are
fields in the payload, and other parts are static strings
CompositeVal cannot handle circular references. Meaning you cannot have two
values that contain fields of each other in the same payload.
Fields that are not found when built into a string will throw an error

{
    "parts": [
        {
            "field": "string"
        }
    ]
}