B

B: b2AABB; b2BodyDef; b2BodyEvents; b2BodyId; b2BodyMoveEvent; b2Capsule; b2CastOutput; b2ChainDef; b2ChainId; b2ChainSegment; b2Circle; b2ContactBeginTouchEvent; b2ContactData; b2ContactEndTouchEvent; b2ContactEvents; b2ContactHitEvent; b2DebugDraw; b2DistanceCache; b2DistanceInput; b2DistanceJointDef; b2DistanceOutput; b2DistanceProxy; b2DynamicTree; b2Filter; b2Hull; b2JointId; b2Manifold; b2ManifoldPoint; b2MassData; b2Mat22; b2MotorJointDef; b2MouseJointDef; b2Polygon; b2PrismaticJointDef; b2QueryFilter; b2RayCastInput; b2RayResult; b2RevoluteJointDef; b2Rot; b2Segment; b2SegmentDistanceResult; b2SensorBeginTouchEvent; b2SensorEndTouchEvent; b2SensorEvents; b2ShapeCastInput; b2ShapeCastPairInput; b2ShapeDef; b2ShapeId; b2Simplex; b2SimplexVertex; b2Sweep; b2TOIInput; b2TOIOutput; b2Transform; b2TreeNode; b2TreeNode.__unnamed1__; b2Vec2; b2Version; b2WeldJointDef; b2WheelJointDef; b2WorldDef; b2WorldId