new_contents: """empty message
  
  Revision ID: 0105_opg_letter_org
  Revises: 0104_more_letter_orgs
  Create Date: 2017-06-29 12:44:16.815039
  
  """
  
  # revision identifiers, used by Alembic.
  revision = '0105_opg_letter_org'
  down_revision = '0104_more_letter_orgs'
  
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  from flask import current_app
  
  
  def upgrade():
      op.execute("""
          INSERT INTO dvla_organisation VALUES
          ('002', 'Office of the Public Guardian')
      """)
  
  
  def downgrade():
      # data migration, no downloads
      pass
  
subject: Add OPG to letter organisations