Output:

manim (filename.py) (ClassName) -pqh 

here write those without the brackets and -pqh suggests, play quality high, you can use
-pql, -pqm and -pqp, suggesting low, medium, production.
H - 1080p60
L - 480p30
P - 1440p60
M - 720p30
k - 4k60fps