opg_derive 0.0.20

<p align="center">
    <h3 align="center">opg</h3>
    <p align="center">Rust OpenAPI 3.0 docs generator</p>
    <p align="center">
        <a href="/LICENSE">
            <img alt="GitHub" src="https://img.shields.io/github/license/Rexagon/opg?style=flat-square" />
        </a>
        <a href="https://github.com/Rexagon/opg/actions?query=workflow%3Amaster">
            <img alt="GitHub Workflow Status" src="https://img.shields.io/github/workflow/status/Rexagon/opg/master?style=flat-square" />
        </a>
        <a href="https://crates.io/crates/opg">
            <img alt="Crates.io Version" src="https://img.shields.io/crates/v/opg?style=flat-square" />
        </a>
    </p>
</p>

#### Example

```rust
use opg::*;
use serde::Serialize;

#[derive(Debug, Clone, Serialize, OpgModel)]
#[serde(rename_all = "camelCase")]
#[opg("New type description", string)]
enum SuperResponse {
    Test,
    Another,
    Yay,
}

#[test]
fn expands_normally() {
    let test = describe_api! {
        info: {
            title: "My super API",
            version: "0.0.0",
        },
        tags: {internal, admin("Super admin methods")},
        servers: {
            "https://my.super.server.com/v1",
        },
        paths: {
            ("hello" / "world" / { paramTest: String }): {
                summary: "Some test group of requests",
                description: "Another test description",
                parameters: {
                    (header "x-request-id"): {
                        description: "Test",
                        required: true,
                    }
                },
                GET: {
                    tags: {internal},
                    summary: "Small summary",
                    description: "Small description",
                    parameters: {
                        (query someParam: u32): {
                            description: "Test",
                        }
                    }
                    200: String ("Ok"),
                },
                POST: {
                    tags: {admin},
                    body: {
                        description: "Some interesting description",
                        schema: String,
                        required: true,
                    }
                    200: SuperResponse ("Ok")
                }
            }
        }
    };

    println!("{}", serde_yaml::to_string(&test).unwrap());
}
```

#### Result:

```yaml
---
openapi: 3.0.3
info:
  title: My super API
  version: 0.0.0
tags:
  - name: admin
    description: Super admin methods
  - name: internal
servers:
  - url: "https://my.super.server.com/v1"
paths:
  "/hello/world/{paramTest}":
    summary: Some test group of requests
    description: Another test description
    get:
      tags:
        - internal
      summary: Small summary
      description: Small description
      responses:
        200:
          description: Ok
          content:
            application/json:
              schema:
                type: string
      parameters:
        - name: someParam
          description: Test
          in: header
          schema:
            type: integer
    post:
      tags:
        - admin
      requestBody:
        required: true
        description: Some interesting description
        content:
          application/json:
            schema:
              type: string
      responses:
        200:
          description: Ok
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/SuperResponse"
    parameters:
      - name: paramTest
        in: path
        required: true
        schema:
          type: string
      - name: x-request-id
        description: Test
        in: header
        required: true
        schema:
          type: string
components:
  schemas:
    SuperResponse:
      description: New type description
      type: string
      enum:
        - test
        - another
        - yay
      example: test
```