1.0.4

• ✨ [Python] Added __slots__ to classes for improved performances
• ✨ [Python] Added custom PipeError exception class for better error handling
• 🐞 [Elixir] Fixed error message for the then function

PRs breakdown

• [Deps] Update python dependencies by @Jordan-Kowal in #5
• chore: added slots to python classes by @Jordan-Kowal in #6
• chore: added custom exception class PipeError by @Jordan-Kowal in #7
• chore: deps upgrade by @Jordan-Kowal in #8
• release: 1.0.4 by @Jordan-Kowal in #9

Full Changelog: 1.0.3...1.0.4