pub fn is_concurrent_modification(&self) -> bool {
        matches!(
            &self.kind,
            DeactivateKeySigningKeyErrorKind::ConcurrentModification(_)
        )
    }
/// Returns `true` if the error kind is `DeactivateKeySigningKeyErrorKind::ConcurrentModification`.
Returns `true` if the error kind is `DeactivateKeySigningKeyErrorKind::ConcurrentModification`.
Returns ` true ` if the error kind is ` DeactivateKeySigningKeyErrorKind :: ConcurrentModification ` .
pub fn is_concurrent_modification(&self) -> bool {
        matches!(
            &self.kind,
            DeactivateKeySigningKeyErrorKind::ConcurrentModification(_)
        )
    }
pub fn is_concurrent_modification ( & self ) -> bool { matches ! ( self kind DeactivateKeySigningKeyErrorKind ConcurrentModification ( ) ) }
Returns `true` if the error kind is `DeactivateKeySigningKeyErrorKind::ConcurrentModification`.
Returns ` true ` if the error kind is ` DeactivateKeySigningKeyErrorKind :: ConcurrentModification ` .
&self
&self