code: def upgrade():
      
      op.create_table(
          'access_actionssystemroles',
          sa.Column('id', sa.Integer(), nullable=False),
          sa.Column('action', sa.String(length=80), nullable=True),
          sa.Column('exclude', sa.Boolean(name='exclude'), server_default='0',
                    nullable=False),
          sa.Column('argument', sa.String(length=255), nullable=True),
          sa.Column('role_name', sa.String(length=40), nullable=False),
          sa.PrimaryKeyConstraint('id',
                                  name=op.f('pk_access_actionssystemroles')),
          sa.UniqueConstraint('action', 'exclude', 'argument', 'role_name',
                              name='access_actionssystemroles_unique')
      )
      op.create_index(op.f('ix_access_actionssystemroles_action'),
                      'access_actionssystemroles', ['action'], unique=False)
      op.create_index(op.f('ix_access_actionssystemroles_argument'),
                      'access_actionssystemroles', ['argument'], unique=False)
      op.create_index(op.f('ix_access_actionssystemroles_role_name'),
                      'access_actionssystemroles', ['role_name'], unique=False)
docs: Upgrade database.