Frame’s meta information.
This property contains meta information, if any, as set by datatable functions and methods. It is a settable property, so that users can also update it with any information relevant to a particular frame.
It is not guaranteed that the existing meta information will be preserved by the functions and methods called on the frame. In particular, it is not preserved when exporting data into a Jay file or pickling the data. This behavior may change in the future.
The default value for this property is
If the frame carries any meta information, the corresponding meta
information dictionary is returned,
None is returned otherwise.
New meta information.