new_contents: """Add templates
  
  Revision ID: 2b0edcfa57b4
  Revises: 24be36b8c67
  Create Date: 2015-11-24 17:50:13.280722
  
  """
  
  import sqlalchemy as sa
  from alembic import op
  
  
  # revision identifiers, used by Alembic.
  revision = '2b0edcfa57b4'
  down_revision = '24be36b8c67'
  
  def upgrade():
      op.add_column('board', sa.Column('is_template', sa.Boolean, default=False))
  
  
  def downgrade():
      op.drop_column('board', 'is_template')
  
subject: Add template field