An object literal parameter specifying default values. Structure:
defaultFileName [type: String, optional: true] - (optional) The file name to save as.
defaultFileTypeName [type: String, optional: true] - (optional) The file type to save by default.
fileTypes [type: Array, elementType: Object] - The file types. Structure:
name [type: String] - The name of the file type.
objectType [type: dundas.ObjectType] - The object type.
projectId [type: String, optional: true] - (optional) The ID of the project to save to.
isSaveAs [type: Boolean, optional: true] - (optional) Indicates this is a "Save As" dialog.