https://lazka.github.io/pgi-docs/GstPlay-1.0/classes/PlayVisualization.html
GstPlay.PlayVisualization - Structures - GstPlay 1.0
structures
https://lazka.github.io/pgi-docs/GstPlay-1.0/enums.html
Enums - GstPlay 1.0
enums
https://lazka.github.io/pgi-docs/GstPlay-1.0/hierarchy.html
Hierarchy - GstPlay 1.0
hierarchy