new_contents: """
  
  Revision ID: 0141_remove_unused
  Revises: 0140_sms_prefix_non_nullable
  Create Date: 2017-11-20 11:35:24.402021
  
  """
  from alembic import op
  import sqlalchemy as sa
  from sqlalchemy.dialects import postgresql
  
  revision = '0141_remove_unused'
  down_revision = '0140_sms_prefix_non_nullable'
  
  
  def upgrade():
      op.drop_table('notification_statistics')
      op.drop_column('services', 'sms_sender')
      op.drop_column('services_history', 'sms_sender')
  
  
  def downgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column('services_history', sa.Column('sms_sender', sa.VARCHAR(length=11), autoincrement=False, nullable=True))
      op.add_column('services', sa.Column('sms_sender', sa.VARCHAR(length=11), autoincrement=False, nullable=True))
      op.create_table('notification_statistics',
          sa.Column('id', postgresql.UUID(), autoincrement=False, nullable=False),
          sa.Column('service_id', postgresql.UUID(), autoincrement=False, nullable=False),
          sa.Column('emails_requested', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('emails_delivered', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('emails_failed', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('sms_requested', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('sms_delivered', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('sms_failed', sa.BIGINT(), autoincrement=False, nullable=False),
          sa.Column('day', sa.DATE(), autoincrement=False, nullable=False),
          sa.ForeignKeyConstraint(['service_id'], ['services.id'], name='notification_statistics_service_id_fkey'),
          sa.PrimaryKeyConstraint('id', name='notification_statistics_pkey'),
          sa.UniqueConstraint('service_id', 'day', name='uix_service_to_day')
      )
  
subject: Remove notification_statistics and Service.sms_sender