text: """empty message
  
  Revision ID: 46f1b2e71e0d
  Revises: 1d959bede96f
  Create Date: 2018-05-21 10:50:29.262904
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '46f1b2e71e0d'
  down_revision = '1d959bede96f'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_column('plate_dict', 'expt_type')
      # ### end Alembic commands ###
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('plate_dict', sa.Column('expt_type', sa.VARCHAR(), autoincrement=False, nullable=True))
      # ### end Alembic commands ###
  