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