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

left to right direction
skinparam defaultTextAlignment center

rectangle "<$ma_call_merge>\nChoose\nInput" as block #LightPink

interface " " as q1
interface " " as q2
interface " " as q3
interface " " as q4
interface " " as q5
interface " " as q6

block --> q1: output
q2 --> block: in1
q3 --> block: in2
q4 ..> block: ...
q5 --> block: inn
q6 -> block: select
@enduml
