code: def downgrade() -> None:
      bind = op.get_bind()
  
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_index(
          op.f("ix_suggestions_type"), table_name="suggestions"
      )
      op.drop_index(
          op.f("ix_suggestions_record_id"), table_name="suggestions"
      )
      op.drop_index(
          op.f("ix_suggestions_question_id"), table_name="suggestions"
      )
      op.drop_table("suggestions")
      # ### end Alembic commands ###
  
      # For this see here: https://github.com/sqlalchemy/alembic/issues/886
      if bind.dialect.name == "postgresql":
          suggestion_type_enum.drop(bind)
  
imports: import sqlalchemy
  from alembic import op
label_desc: Use image node_id 2 for calling a global function with example usage: downgrade() without return types