Here are the classes:
+.. currentmodule:: email.mime.base
.. class:: MIMEBase(_maintype, _subtype, **_params)
:mailheader:`MIME-Version` header (always set to ``1.0``).
+.. currentmodule:: email.mime.nonmultipart
+
.. class:: MIMENonMultipart()
Module: :mod:`email.mime.nonmultipart`
.. versionadded:: 2.2.2
+.. currentmodule:: email.mime.multipart
+
.. class:: MIMEMultipart([subtype[, boundary[, _subparts[, _params]]]])
Module: :mod:`email.mime.multipart`
.. versionadded:: 2.2.2
+.. currentmodule:: email.mime.application
+
.. class:: MIMEApplication(_data[, _subtype[, _encoder[, **_params]]])
Module: :mod:`email.mime.application`
.. versionadded:: 2.5
+.. currentmodule:: email.mime.audio
+
.. class:: MIMEAudio(_audiodata[, _subtype[, _encoder[, **_params]]])
Module: :mod:`email.mime.audio`
*_params* are passed straight through to the base class constructor.
+.. currentmodule:: email.mime.image
+
.. class:: MIMEImage(_imagedata[, _subtype[, _encoder[, **_params]]])
Module: :mod:`email.mime.image`
*_params* are passed straight through to the :class:`MIMEBase` constructor.
+.. currentmodule:: email.mime.message
+
.. class:: MIMEMessage(_msg[, _subtype])
Module: :mod:`email.mime.message`
:mimetype:`rfc822`.
+.. currentmodule:: email.mime.text
+
.. class:: MIMEText(_text[, _subtype[, _charset]])
Module: :mod:`email.mime.text`