code: def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.add_column(
          "experiment",
          sa.Column("is_archived", sa.Boolean(), nullable=True),
      )
      op.add_column(
          "tag", sa.Column("is_archived", sa.Boolean(), nullable=True)
      )
  
imports: from alembic import op
  import sqlalchemy
label_desc: Use image node_id 1 for calling a global function with example usage: upgrade() without return types