better struct alias in rust (#6470)

Author: wing328

modules/openapi-generator/src/main/resources/rust/reqwest/api.mustache

@@ -29,7 +29,7 @@ impl {{{classname}}}Client {
 {{#-first}}
 /// struct for passing parameters to the method `{{operationId}}`
 #[derive(Clone, Debug)]
-pub struct {{{classname}}}{{{operationIdCamelCase}}}Params {
+pub struct {{{operationIdCamelCase}}}Params {
 {{/-first}}
     {{#description}}
     /// {{{.}}}
@@ -49,7 +49,7 @@ pub trait {{{classname}}} {
 {{#operations}}
 {{#operation}}
     {{#vendorExtensions.x-group-parameters}}
-    fn {{{operationId}}}(&self{{#allParams}}{{#-first}}, params: {{{classname}}}{{{operationIdCamelCase}}}Params{{/-first}}{{/allParams}}) -> Result<{{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error>;
+    fn {{{operationId}}}(&self{{#allParams}}{{#-first}}, params: {{{operationIdCamelCase}}}Params{{/-first}}{{/allParams}}) -> Result<{{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error>;
     {{/vendorExtensions.x-group-parameters}}
     {{^vendorExtensions.x-group-parameters}}
     fn {{{operationId}}}(&self, {{#allParams}}{{{paramName}}}: {{^required}}Option<{{/required}}{{#required}}{{#isNullable}}Option<{{/isNullable}}{{/required}}{{#isString}}&str{{/isString}}{{#isUuid}}&str{{/isUuid}}{{^isString}}{{^isUuid}}{{^isPrimitiveType}}{{^isContainer}}crate::models::{{/isContainer}}{{/isPrimitiveType}}{{{dataType}}}{{/isUuid}}{{/isString}}{{^required}}>{{/required}}{{#required}}{{#isNullable}}>{{/isNullable}}{{/required}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) -> Result<{{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error>;
@@ -63,7 +63,7 @@ impl {{{classname}}} for {{{classname}}}Client {
 {{#operations}}
 {{#operation}}
     {{#vendorExtensions.x-group-parameters}}
-    {{#supportAsync}}pub async {{/supportAsync}}fn {{{operationId}}}({{^supportAsync}}&self{{/supportAsync}}{{#supportAsync}}configuration: &configuration::Configuration{{/supportAsync}}{{#allParams}}{{#-first}}, params: {{{classname}}}{{{operationIdCamelCase}}}Params{{/-first}}{{/allParams}}) -> Result<{{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error> {
+    {{#supportAsync}}pub async {{/supportAsync}}fn {{{operationId}}}({{^supportAsync}}&self{{/supportAsync}}{{#supportAsync}}configuration: &configuration::Configuration{{/supportAsync}}{{#allParams}}{{#-first}}, params: {{{operationIdCamelCase}}}Params{{/-first}}{{/allParams}}) -> Result<{{^returnType}}(){{/returnType}}{{#returnType}}{{{returnType}}}{{/returnType}}, Error> {
         // unbox the parameters
         {{#allParams}}
         let {{paramName}} = params.{{paramName}};

modules/openapi-generator/src/main/resources/rust/reqwest/api_mod.mustache

@@ -46,7 +46,7 @@ pub use self::{{{classFilename}}}::{ {{{operationId}}} };
 {{#vendorExtensions.x-group-parameters}}
 {{#allParams}}
 {{#-first}}
-pub use self::{{{classFilename}}}::{ {{{classname}}}{{{operationIdCamelCase}}}Params };
+pub use self::{{{classFilename}}}::{{{operationIdCamelCase}}} as {{{classname}}}{{{operationIdCamelCase}}};
 {{/-first}}
 {{/allParams}}
 {{/vendorExtensions.x-group-parameters}}