hen 0.20.2

Run protocol-aware API request collections from the command line or through MCP.
Documentation 
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openapi: 3.1.0
info:
  title: Union Import Demo
  version: 1.0.0
servers:
  - url: https://example.com/api
components:
  schemas:
    Cat:
      type: object
      required: [id, lives]
      properties:
        id:
          type: string
          format: uuid
        lives:
          type: integer
    Dog:
      type: object
      required: [id, breed]
      properties:
        id:
          type: string
          format: uuid
        breed:
          type: string
    Animal:
      oneOf:
        - $ref: '#/components/schemas/Cat'
        - $ref: '#/components/schemas/Dog'
    CardCheckout:
      type: object
      required: [method, cardLast4]
      properties:
        method:
          type: string
          const: card
        cardLast4:
          type: string
          minLength: 4
          maxLength: 4
    BankCheckout:
      type: object
      required: [method, accountId]
      properties:
        method:
          type: string
          const: bank
        accountId:
          type: string
          minLength: 6
    Checkout:
      oneOf:
        - $ref: '#/components/schemas/CardCheckout'
        - $ref: '#/components/schemas/BankCheckout'
      discriminator:
        propertyName: method
        mapping:
          card: '#/components/schemas/CardCheckout'
          bank: '#/components/schemas/BankCheckout'
    Result:
      oneOf:
        - $ref: '#/components/schemas/Animal'
        - $ref: '#/components/schemas/Checkout'
paths:
  /checkout:
    post:
      operationId: createCheckout
      requestBody:
        required: true
        content:
          application/json:
            schema:
              discriminator:
                propertyName: method
              oneOf:
                - type: object
                  required: [method, cardLast4]
                  properties:
                    method:
                      type: string
                      const: card
                    cardLast4:
                      type: string
                      minLength: 4
                      maxLength: 4
                - type: object
                  required: [method, accountId]
                  properties:
                    method:
                      type: string
                      const: bank
                    accountId:
                      type: string
                      minLength: 6
      responses:
        '200':
          description: Created checkout or animal payload
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Result'