@startuml
!include <material/common>
!include <material/basket_unfill>

left to right direction
skinparam defaultTextAlignment center

rectangle "<$ma_basket_unfill>\nEmptier" as block #LightBlue

interface " " as q1
interface " " as q2
interface " " as q3
interface " " as q4

q1 --> block: input
block -u-> q2: request
block --> q3: Q
block --> q4: overflow
@enduml
