new_contents: """Add zupc to ADS
  
  Revision ID: 450554023cb2
  Revises: 2e65dbaa935
  Create Date: 2015-07-01 16:14:40.817104
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '450554023cb2'
  down_revision = '2e65dbaa935'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  
  def upgrade():
      op.add_column('ADS', sa.Column('zupc_id', sa.Integer(), nullable=True))
  
  
  def downgrade():
      op.drop_column('ADS', 'zupc_id')
  
subject: Add migration file!