A container for 3 component types.
specs : (Ecs.Internal.AllComponentsSpec comparable (Components3 comparable a1 a2 a3) -> Ecs.Internal.ComponentSpec comparable a1 (Components3 comparable a1 a2 a3) -> Ecs.Internal.ComponentSpec comparable a2 (Components3 comparable a1 a2 a3) -> Ecs.Internal.ComponentSpec comparable a3 (Components3 comparable a1 a2 a3) -> specs) -> specs
Create all component specifications for 3 component types.