code: def upgrade():
      try:
          # Trying since sqlite doesn't like constraints
          op.drop_constraint(
              "tables_table_name_key", "tables", type_="unique"
          )
          op.create_unique_constraint(
              "_customer_location_uc",
              "tables",
              ["database_id", "schema", "table_name"],
          )
      except Exception:
          pass
  
label_desc: Use image node_id 1 for calling a global function with example usage: upgrade() without return types