text: """empty message
  
  Revision ID: 742e0a6c2c06
  Revises: 8a284baf731a
  Create Date: 2016-04-12 22:20:50.602801
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '742e0a6c2c06'
  down_revision = '8a284baf731a'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.add_column('tasks', sa.Column('completion', sa.DateTime(), nullable=True))
      ### end Alembic commands ###
  
  
  def downgrade():
      ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('tasks', 'completion')
      ### end Alembic commands ###
  