- update to 1.12.1:
  * Fixed regression caused by :ticket:`879` released in 1.7.0
    where the ".info" dictionary of ``Table`` would not render in
    autogenerate create table statements.
    This can be useful for custom create table DDL rendering
    schemes so it is restored.
  * Improved typing in the
    :paramref:`.EnvironmentContext.configure.process_revision_dir
    ectives` callable to better indicate that the passed-in type is
    :class:`.MigrationScript`, not the :class:`.MigrationOperation`
    base class, and added typing to the example at
    :ref:`cookbook_no_empty_migrations` to illustrate.
  * Repaired :class:`.ExecuteSQLOp` so that it can participate in
    "diff" operations; while this object is typically not present
    in a reflected operation stream, custom hooks may be adding
    this construct where it needs to have the correct
    ``to_diff_tuple()`` method.
  * Improved the ``op.execute()`` method to correctly accept the
  * ``Executable`` type that is the same which is used in
    SQLAlchemy ``Connection.execute()``.
  * Improve typing of the revision parameter in various command
    functions.
  * Fixed autogen render issue where expressions inside of
    indexes for PG need to be double-parenthesized, meaning a
    single parens must be present within the generated ``text()``
    construct.
  * Alembic now accommodates for Sequence and Identity that
    support dialect kwargs.
    This is a change that will be added to SQLAlchemy v2.1.

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