pub fn to_fmt<T: ToJson + ?Sized, W: Write + ?Sized>(
value: &T,
writer: &mut W,
) -> Result<(), Error>Expand description
Serialize value into any core::fmt::Write sink.
Returns the underlying Error (typed) on failure — including
non-finite floats. For String targets prefer to_string; this
entry point is for arbitrary fmt::Write consumers.