text: """empty message
  
  Revision ID: c5793935c735
  Revises: 18c4f0e138f4
  Create Date: 2017-11-05 17:42:40.057518
  
  """
  
  # revision identifiers, used by Alembic.
  revision = 'c5793935c735'
  down_revision = '18c4f0e138f4'
  
  from alembic import op
  import sqlalchemy as sa
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('files', sa.Column('s3_id', sa.String(length=32), nullable=True))
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('files', 's3_id')
      # ### end Alembic commands ###
  