Matches #

[[step]]
  action = "Matches"
  out_label = 'of_interest'
  source = 'name:read1' # or tag:<tag_label> or <segment>
  accepted = ['alpha1', 'beta1', 'nosuch']

Set a bool tag whether the source matched one of the accepted values (exactly, case sensitive).

Useful when you need to pick out some reads for debugging.

Often followed with by FilterByTag.