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