v0.18.0

What's Changed

New Features

• New magnetic field class - mirror machine by @rogeriojorge in #325
• Descriptor protocol by @mbkumar in #326

Updates and Fixes

• Fixes the permanent magnet docstring for sphinx by @mbkumar in #331
• Code cleanup by @mbkumar in #323
• Removing python 3.7 in CI due to its EOL in a week by @mbkumar in #328
• Update API documentation by @mbkumar in #322

Full Changelog: v0.17.1...v0.18.0