pub trait ExpressionDiffFormatterExt {
// Required method
fn fmt_diff(
&mut self,
diff: &ExpressionDiff,
expected_color: Option<Color>,
actual_color: Option<Color>,
) -> FmtResult;
}pub trait ExpressionDiffFormatterExt {
// Required method
fn fmt_diff(
&mut self,
diff: &ExpressionDiff,
expected_color: Option<Color>,
actual_color: Option<Color>,
) -> FmtResult;
}