SharePoint content type’s ID that is unique within a site collection.
listName
See note
String
GUID of the SharePoint list (not the display name).
webUrl
See note
String
URL to the SharePoint site containing the list.
document
Yes
String
File name that references the file to be used as document.
attributes
Yes
Object
The attributes of the new item as name:value pairs (properties).
Note
Note: Not required when using a custom form defined for a library, where you already have contextual information available from the user navigation through the UI.