digraph HaplotypeCallerGvcf_GATK4 {
  #rankdir=LR;
  compound=true;

  # Links
  CALL_HaplotypeCaller -> CALL_MergeGVCFs
  SCATTER_0_VARIABLE_interval_file -> CALL_HaplotypeCaller
  CALL_CramToBamTask -> CALL_HaplotypeCaller

  # Nodes
  CALL_MergeGVCFs [label="call MergeGVCFs"]
  subgraph cluster_0 {
    style="filled,solid";
    fillcolor=white;
    CALL_HaplotypeCaller [label="call HaplotypeCaller"]
    SCATTER_0_VARIABLE_interval_file [shape="hexagon" label="scatter over File as interval_file"]
  }
  subgraph cluster_1 {
    style="filled,dashed";
    fillcolor=white;
    CALL_CramToBamTask [label="call CramToBamTask"]
    CONDITIONAL_1_EXPRESSION [shape="hexagon" label="if (is_cram)" style="dashed" ]
  }
}