惟一需要额外步骤的输入是图表类型，它是由GoogleChartsAPI使用两个或三个字母的缩写表示的。
The only input that requires an extra step is the chart type, which is represented by the Google Charts API using two - or three-letter abbreviations.
包含三个或三个以上字符的首字母缩写词只有第一个字符大写，但当首字母缩写词作为大小写混合格式的标识符的首个单词时例外。
Used as the first word of a camel-cased identifier. Do capitalize only the first character of acronyms with three or more characters, except the first word of a camel-cased identifier.
包含三个或三个以上字符的首字母缩写词只有第一个字符大写，但当首字母缩写词作为大小写混合格式的标识符的首个单词时例外。
Used as the first word of a camel-cased identifier. Do capitalize only the first character of acronyms with three or more characters, except the first word of a camel-cased identifier.
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