Marqeta fee refunds API

openapi: 3.0.3
info:
  contact:
    email: support@marqeta.com
    name: Marqeta
  description: Marqeta's Core API endpoints, conveniently annotated to enable code generation (including SDKs), test cases, and documentation. Currently in beta.
  termsOfService: https://www.marqeta.com/api-terms
  title: Core accepted countries fee refunds API
  version: 3.0.39
servers:
- url: /v3
security:
- mqAppAndAccessToken: []
tags:
- name: fee refunds
paths:
  /feerefunds:
    post:
      operationId: postFeeRefunds
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/fee_refund_request'
        required: false
      responses:
        '201':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/fee_refund_response'
          description: Success
        '400':
          content: {}
          description: User input error/Bad request
        '409':
          content: {}
          description: Request already processed with a different payload
        '422':
          content: {}
          description: Rule violations
        '500':
          content: {}
          description: Server error
      summary: Creates a fee refund
      tags:
      - fee refunds
components:
  schemas:
    fee:
      description: Contains details about the fee.
      properties:
        amount:
          description: Amount of the fee.
          type: number
        created_time:
          description: Date and time when the `fees` object was created, in UTC.
          format: date-time
          type: string
        currency_code:
          description: Three-digit ISO 4217 currency code.
          type: string
        last_modified_time:
          description: Date and time when the `fees` object was last modified, in UTC.
          format: date-time
          type: string
        memo:
          description: Optional property to be used as Dispaly field when the fee is applied 255 char max
          type: string
        name:
          description: Name of the fee.
          type: string
        tags:
          description: Descriptive metadata about the fee.
          type: string
        token:
          description: Unique identifier of the `fees` object.
          type: string
      required:
      - amount
      - created_time
      - currency_code
      - last_modified_time
      - name
      - token
      type: object
    fee_refund_response:
      properties:
        created_time:
          description: yyyy-MM-ddTHH:mm:ssZ
          format: date-time
          type: string
        fee:
          $ref: '#/components/schemas/fee'
        memo:
          maxLength: 99
          minLength: 1
          type: string
        original_fee_transaction_token:
          type: string
        overrideAmount:
          type: number
        state:
          type: string
        tags:
          maxLength: 255
          minLength: 0
          type: string
        token:
          description: 36 char max
          maxLength: 36
          minLength: 1
          type: string
        transaction_token:
          type: string
      required:
      - created_time
      - fee
      - token
      - transaction_token
      type: object
    fee_refund_request:
      properties:
        original_fee_transaction_token:
          type: string
        tags:
          type: string
      type: object
  securitySchemes:
    mqAppAndAccessToken:
      scheme: basic
      type: http