impl From<Number> for Value is missing

[imp]

This could be useful at times. The concrete use case I have is a string that needs to be converted to Value. The string could be either numerical in which case it should be Value::Number or just a text, in which case it will be Value::String.
So I am using next code:

// text here is &str
if let Ok(number) = text.parse::<Number>() {
    Value::Number(number)
} else {
    Value::from(text)
}

Writing Value::from(number) feels cleaner