pub fn has_diff_nb_digits(&self) -> bool {
        self.nb_digits
            .iter()
            .skip(1)
            .any(|x| *x != self.nb_digits[0])
    }
/// Returns whether oracles have varying number of digits.
Returns whether oracles have varying number of digits.
Returns whether oracles have varying number of digits .
pub fn has_diff_nb_digits(&self) -> bool {
        self.nb_digits
            .iter()
            .skip(1)
            .any(|x| *x != self.nb_digits[0])
    }
pub fn has_diff_nb_digits ( & self ) -> bool { self . nb_digits . iter ( ) . skip ( 1 ) . any ( | x | * x != self . nb_digits [ 0 ] ) }
Returns whether oracles have varying number of digits.
Returns whether oracles have varying number of digits .
&self