v7.0.4

What's Changed

• test: test #safe_execute by @ninoseki in #964
• chore: install csv gem by @ninoseki in #965
• test: update tests by @ninoseki in #966
• fix: use null coalescing operator by @ninoseki in #967
• fix: fix diff issue by @ninoseki in #968
• refactor: stop outputting initialization message by @ninoseki in #969
• V7.0.4 by @ninoseki in #970

Full Changelog: v7.0.3...v7.0.4