Merge Leftmost Sink Branch
A leftward merge whose trunk reaches a leftmost-column sink's LEFT entry: the trunk wraps to rise on the box's far (left) side, with the branch feeders converging on its shared channel, rather than crossing the sink interior to the far-side port.
Mermaid source
%%metro title: Merge Leftmost Sink Branch%%metro style: dark%%metro line: a | A | #e63946
%%metro grid: blocker | 1,0%%metro grid: step_a | 3,0%%metro grid: step_b | 5,0%%metro grid: extra | 6,0%%metro grid: sink | 0,1
graph LR subgraph blocker [Blocker] bl1[Block Start] bl2[Block End] bl1 -->|a| bl2 end
subgraph step_a [Step A] a1[Process A] a2[Out A] a1 -->|a| a2 end
subgraph step_b [Step B] b1[Process B] b2[Out B] b1 -->|a| b2 end
subgraph extra [Extra] e1[Extra] e2[Extra Out] e1 -->|a| e2 end
subgraph sink [Sink] t1[Collect] t2[Report] t1 -->|a| t2 end
bl2 -->|a| a1 a2 -->|a| b1 a2 -->|a| t1 b2 -->|a| e1 b2 -->|a| t1CLI command
nf-metro render examples/topologies/merge_leftmost_sink_branch.mmd -o merge_leftmost_sink_branch.svg