new_contents: """
  
  Revision ID: 0325_int_letter_rates_fix
  Revises: 0324_int_letter_rates
  Create Date: 2020-07-15 10:09:17.218183
  
  """
  from datetime import datetime
  
  from alembic import op
  from sqlalchemy.sql import text
  
  revision = '0325_int_letter_rates_fix'
  down_revision = '0324_int_letter_rates'
  
  
  old_start_date = datetime(2020, 7, 1, 0, 0)
  new_start_date = datetime(2020, 6, 30, 23, 0)
  
  
  def upgrade():
      conn = op.get_bind()
      conn.execute(text(
          """UPDATE letter_rates SET start_date = :new_start_date WHERE start_date = :old_start_date"""
      ), new_start_date=new_start_date, old_start_date=old_start_date)
  
  
  def downgrade():
      conn = op.get_bind()
      conn.execute(text(
          """UPDATE letter_rates SET start_date = :old_start_date WHERE start_date = :new_start_date"""
      ), old_start_date=old_start_date, new_start_date=new_start_date)
  
subject: Fix international letter rate start dates