code: def upgrade():
      """Add is_orphaned to DatasetModel"""
      with op.batch_alter_table("dataset") as batch_op:
          batch_op.add_column(
              sa.Column(
                  "is_orphaned",
                  sa.Boolean,
                  default=False,
                  nullable=False,
                  server_default="0",
              )
          )
  
imports: from __future__ import annotations
  import sqlalchemy
  from alembic import op
label_desc: Use image node_id 1 for calling a global function with example usage: upgrade() without return types