text: """add per frame utility to ExpLatency
  
  Revision ID: 950cd7f3122a
  Revises: be8dadc1ce2b
  Create Date: 2019-05-18 20:56:25.497392
  
  """
  from alembic import op
  import sqlalchemy as sa
  
  
  # revision identifiers, used by Alembic.
  revision = '950cd7f3122a'
  down_revision = 'be8dadc1ce2b'
  branch_labels = None
  depends_on = None
  
  
  def upgrade():
      op.add_column('ExpLatency', sa.Column('utility', sa.Float))
  
  
  def downgrade():
      op.drop_column('ExpLatency', 'utility')
  