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