bam_create_som_pon_gatk         
 Perform variant calling on a set of normal samples using mutect2 panel of normals mode. Group them into a genomicsdbworkspace using genomicsdbimport, then use this to create a panel of normals using createsomaticpanelofnormals.
 gatk4mutect2genomicsdbimportcreatesomaticpanelofnormalsvariant_callinggenomicsdb_workspacepanel_of_normals 
   Description
Perform variant calling on a set of normal samples using mutect2 panel of normals mode. Group them into a genomicsdbworkspace using genomicsdbimport, then use this to create a panel of normals using createsomaticpanelofnormals.
Input
 name 
  description 
  pattern 
 An input channel containing the following files:
- input: One or more BAM/CRAM files
- input_index: The index/indices from the BAM/CRAM file(s)
- interval_file: An interval file to be used with the mutect call
 Structure: [ meta, input, input_index, interval_file ]
