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- #[macro_export]
- macro_rules! required_arg {
- ($ty: ty, $e: expr, $err: expr) => {
- match $e {
- Some(v) => match from_value::<$ty>(v.clone()) {
- Ok(u) => u,
- Err(_) => return Err($err.into()),
- },
- None => return Err($err.into()),
- }
- };
- }
-
- #[macro_export]
- macro_rules! optional_arg {
- ($ty: ty, $e: expr, $err: expr) => {
- match $e {
- Some(v) => match from_value::<$ty>(v.clone()) {
- Ok(u) => Some(u),
- Err(_) => return Err($err.into()),
- },
- None => None,
- }
- };
- }
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