Character body collisions

Question

I want to make a Character body collide with rigid bodies but that isn't working probably, I used this code that I found after the move_and_slide() method:

for col_idx in get_slide_collision_count():
    var col := get_slide_collision(col_idx)
    if col.get_collider() is RigidBody2D:
        col.get_collider().apply_central_impulse(-col.get_normal() * 0.3)
        col.get_collider().apply_impulse(-col.get_normal() * 0.01, col.get_position())

if it's not possible to achieve perfect collisions with a character body, then what is the fastest way to transform a character body to a rigid body, with movement ability, of course?