code: def upgrade():
      bind = op.get_bind()
      session = db.Session(bind=bind)
      MigrateDualLine.upgrade(session)
  
imports: from alembic import op
  from superset import db
  from superset.migrations.shared.migrate_viz.processors import MigrateDualLine
label_desc: Use image node_id 1 for calling a global function with example usage: upgrade() without return types