YAMLの真偽値の扱いに注意。 - Qiita

a: 123 # an integer b: "123" # a string, disambiguated by quotes c: 123.0 # a float d: !!float 123 # also a float via explicit data type prefixed by (!!) e: !!str 123 # a string, disambiguated by explicit type f: !!str Yes # a string via explicit type g: Yes # a boolean True h: Yes we have No bananas # a string, "Yes" and "No" disambiguated by context. 123や"123"をinteger, stringと扱うのは普段Ruby等を使用されている

[camelmasa]

書いた。

[syanbi]

Yes...