fix: imported optional Map type bindings in Rust

[krisbitney]

There are two issues affecting imported Map type bindings from compiling in Rust.

First

// expected type option, got map
let mut _headers: Option<Map<String, String>> = Map::<String, String>::new();
let mut _url_params: Option<Map<String, String>> = Map::<String, String>::new();

Second
In the object serialization logic for optional Map type, we are trying to pass a String instead of a Result<String, Error>. Example:

"headers" => {
                reader.context().push(&field, "Option<Map<String, String>>", "type found, reading property");
                _headers = reader.read_optional_ext_generic_map(|reader| {
                    reader.read_string()? //  <---- This `?` should not be here!
                }, |reader| {
                    reader.read_string()
                })?; 
                reader.context().pop();
            }

[cbrzn]

nice catch ser 🙏, I previously fixed this but only in object types (#1142) and not for imported object types. I guess you also need to update schema/bind test and we are ready to go

[dOrgJelli]

Nice catch! Just need tests to go green

[krisbitney]

nice catch ser 🙏, I previously fixed this but only in object types (#1142) and not for imported object types. I guess you also need to update schema/bind test and we are ready to go

Thanks. 😄

[krisbitney]

Nice catch! Just need tests to go green

Thanks! 😄

[Niraj-Kamdar]

@krisbitney Is it also fixed for the methodTypes?

[krisbitney]

@krisbitney Is it also fixed for the methodTypes?

I fixed both the issues mentioned in the PR description. Are you referring to one of those or something else?

[cbrzn]

@krisbitney Is it also fixed for the methodTypes?

I fixed both the issues mentioned in the PR description. Are you referring to one of those or something else?

Just checked it and we are good to go ser