Kazuki Nakamura

@ryuckel @tokusumi @Kludex Hi. I wanted to contribute to the translation of the FastAPI documentation into Japanese from today, and I've reviewed the parts that have already been written. Thanks...

~Start translating python-types.md~ --- python-types.md translation at PR #1899 [needing review] [Approved-1]🚀

~I'll translate tutorial/query-params-str-validations.md~ --- tutorial/query-params-str-validations.md translation at PR #1901 [needing review] [Approved-1]🚀

~I'll translate tutorial/path-params-numeric-validations.md~ --- tutorial/query-params-numeric-validations.md translation at PR #1902 [needing review][Approved-1] 🚀

~I'll translate tutorial/body-multiple-params.md.~ --- tutorial/body-multiple-params.md. translation at PR #1903 [needing review] 🚀

tutorial/body-fields.md translation at PR #1923 [needing review][Approved-1] 🚀

tutorial/body-nested-models.md translation at PR #1930 [needing review] 🚀

tutorial/schema-extra-example.md translation at PR #1931 [needing review] [Approved-1] 🚀

tutorial/extra-data-types.md translation at PR #1932 [needing review] 🚀

tutorial/cookie-params.md translation at PR #1933 [needing review] [Approved-1]🚀