.ChannelBlockGroup
   - block = channel
   include ../../block_v2/templates/block
   for block in channel.kind.blocks
    include ../../block_v2/templates/block
.ChannelBlockGroup
  .ChannelBlockGroup__inner
    - block = channel
    include ../../block_v2/templates/block
    for block in channel.kind.blocks
      include ../../block_v2/templates/block
Add inner to channel block group
Add inner to channel block group
