command /beam:
   trigger:
       set {_beam} to a new beam between player and target block for player
       start beam {_beam}
       wait 5 seconds
       stop beam {_beam}

Syntax:
  Conditions:
   CondBeamIsActive:
     enabled: true
     description: Check if the beam is active.
     syntax:
     - '%beam% (1¦is|2¦is(n''t|not)) active'
   CondBeamIsViewing:
     enabled: true
     description: Check if the player is currently viewing the beam.
     syntax:
     - '%beam% (1¦is|2¦is(n''t|not)) [currently] viewable'
  Effects:
   EffUpdateBeam:
     enabled: true
     description: Update Guardian Beam.
     syntax:
     - update [beam[s]] %beams%
   EffStartEndLocationBeam:
     enabled: true
     description: Set the starting or ending location of the beam.
     syntax:
     - set [the] (1¦starting|2¦ending) (location|postions)[s] of [(all [[of] the]|the)]
       [beam[s]] %beams% to %location%
   EffStartStopBeam:
     enabled: true
     description: Starts or stops a Guardian Beam.
     syntax:
     - (1¦start|2¦stop) [beam[s]] %beams%
  Expressions:
   ExprNewBeam:
     enabled: true
     description: Creates a new beam.
     syntax:
     - '[new] beam (between|from) %location% (to|and) %location% for %player%
       [[(with|in)] radius %-number% [and] update delay %-number%]'