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+`adapt` -- Types adaptation
+===========================
+
+.. module:: psycopg.adapt
+
+The `!psycopg.adapt` module exposes a set of objects useful for the
+configuration of *data adaptation*, which is the conversion of Python objects
+to PostgreSQL data types and back.
+
+These objects are useful if you need to configure data adaptation, i.e.
+if you need to change the default way that Psycopg converts between types or
+if you want to adapt custom data types and objects. You don't need this object
+in the normal use of Psycopg.
+
+See :ref:`adaptation` for an overview of the Psycopg adaptation system.
+
+.. _abstract base class: https://docs.python.org/glossary.html#term-abstract-base-class
+
+
+Dumpers and loaders
+-------------------
+
+.. autoclass:: Dumper(cls, context=None)
+
+    This is an `abstract base class`_, partially implementing the
+    `~psycopg.abc.Dumper` protocol. Subclasses *must* at least implement the
+    `.dump()` method and optionally override other members.
+
+    .. automethod:: dump
+
+    .. attribute:: format
+        :type: psycopg.pq.Format
+        :value: TEXT
+
+        Class attribute. Set it to `~psycopg.pq.Format.BINARY` if the class
+        `dump()` methods converts the object to binary format.
+
+    .. automethod:: quote
+
+    .. automethod:: get_key
+
+    .. automethod:: upgrade
+
+
+.. autoclass:: Loader(oid, context=None)
+
+    This is an `abstract base class`_, partially implementing the
+    `~psycopg.abc.Loader` protocol. Subclasses *must* at least implement the
+    `.load()` method and optionally override other members.
+
+    .. automethod:: load
+
+    .. attribute:: format
+        :type: psycopg.pq.Format
+        :value: TEXT
+
+        Class attribute. Set it to `~psycopg.pq.Format.BINARY` if the class
+        `load()` methods converts the object from binary format.
+
+
+Other objects used in adaptations
+---------------------------------
+
+.. autoclass:: PyFormat
+    :members:
+
+
+.. autoclass:: AdaptersMap
+
+   .. seealso:: :ref:`adaptation` for an explanation about how contexts are
+       connected.
+
+   .. automethod:: register_dumper
+   .. automethod:: register_loader
+
+   .. attribute:: types
+
+       The object where to look up for types information (such as the mapping
+       between type names and oids in the specified context).
+
+       :type: `~psycopg.types.TypesRegistry`
+
+   .. automethod:: get_dumper
+   .. automethod:: get_dumper_by_oid
+   .. automethod:: get_loader
+
+
+.. autoclass:: Transformer(context=None)
+
+    :param context: The context where the transformer should operate.
+    :type context: `~psycopg.abc.AdaptContext`