code: def upgrade():
      # ### commands auto generated by Alembic - please adjust! ###
      op.create_table(
          "dashboards",
          sa.Column("uuid", sa.Text(), nullable=False),
          sa.Column("name", sa.Text(), nullable=True),
          sa.Column("description", sa.Text(), nullable=True),
          sa.Column("created_at", sa.DateTime(), nullable=True),
          sa.Column("updated_at", sa.DateTime(), nullable=True),
          sa.Column("is_archived", sa.Boolean(), nullable=True),
          sa.PrimaryKeyConstraint("uuid"),
      )
      op.create_table(
          "explore_states",
          sa.Column("uuid", sa.Text(), nullable=False),
          sa.Column("created_at", sa.DateTime(), nullable=True),
          sa.Column("updated_at", sa.DateTime(), nullable=True),
          sa.Column("is_archived", sa.Boolean(), nullable=True),
          sa.Column("type", sa.Text(), nullable=False),
          sa.Column("state", sa.Text(), nullable=True),
          sa.Column("dashboard_id", sa.Text(), nullable=True),
          sa.ForeignKeyConstraint(
              ["dashboard_id"],
              ["dashboards.uuid"],
          ),
          sa.PrimaryKeyConstraint("uuid"),
      )
  
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