Как повторно использовать строковый блок в Swagger

Я пишу файл swagger для AWS API Gateway. Мне нужно использовать блок текста для интеграции для каждой конечной точки. Так сейчас выглядит одна конечная точка

'/products/{productId}':
  get:
    tags:
      - product
    summary: Get detailed information about a product
    consumes:
      - application/json
    produces:
      - application/json
    parameters:
      - name: productId
        in: path
        required: true
        type: string
    responses:
      '200':
        description: 200 response
        schema:
          type: array
          items:
            $ref: '#/definitions/product'
      '404':
        description: product not found
        schema:
          type: array
          items:
            $ref: '#/definitions/product'
    x-amazon-apigateway-integration:
      requestTemplates:
        application/json: >
          ##  See
          http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-mapping-template-reference.html

          ##  This template will pass through all parameters including path,
          querystring, header, stage variables, and context through to the
          integration endpoint via the body/payload

          #set($allParams = $input.params())

          {

          "body-json" : $input.json('$'),

          "params" : {

          #foreach($type in $allParams.keySet())
              #set($params = $allParams.get($type))
          "$type" : {
              #foreach($paramName in $params.keySet())
              "$paramName" : "$util.escapeJavaScript($params.get($paramName))"
                  #if($foreach.hasNext),#end
              #end
          }
              #if($foreach.hasNext),#end
          #end

          },

          "stage-variables" : {

          #foreach($key in $stageVariables.keySet())

          "$key" : "$util.escapeJavaScript($stageVariables.get($key))"
              #if($foreach.hasNext),#end
          #end

          },

          "context" : {
              "account-id" : "$context.identity.accountId",
              "api-id" : "$context.apiId",
              "api-key" : "$context.identity.apiKey",
              "authorizer-principal-id" : "$context.authorizer.principalId",
              "caller" : "$context.identity.caller",
              "cognito-authentication-provider" : "$context.identity.cognitoAuthenticationProvider",
              "cognito-authentication-type" : "$context.identity.cognitoAuthenticationType",
              "cognito-identity-id" : "$context.identity.cognitoIdentityId",
              "cognito-identity-pool-id" : "$context.identity.cognitoIdentityPoolId",
              "http-method" : "$context.httpMethod",
              "stage" : "$context.stage",
              "source-ip" : "$context.identity.sourceIp",
              "user" : "$context.identity.user",
              "user-agent" : "$context.identity.userAgent",
              "user-arn" : "$context.identity.userArn",
              "request-id" : "$context.requestId",
              "resource-id" : "$context.resourceId",
              "resource-path" : "$context.resourcePath"
              }
          }
      uri: >-
        arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:87126xxxxxxx:function:lambdatest_v3/invocations
      passthroughBehavior: never
      responses:
        default:
          statusCode: '200'
      httpMethod: POST
      type: aws

Часть об интеграции x-amazon-apigateway необходимо повторить, как и для каждого пути. Как я могу не писать это каждый раз. Возможно ли определение строки, по крайней мере, чтобы содержать часть о application/json?

Я попытался создать определение строки, но это не сработало при импорте aws:

definitions:
  MyAPI:
    type: string
    default: >
        #Magic

        #set($allParams = $input.params())

        {

        "body-json" : $input.json('$'),

        "params" : {

        #foreach($type in $allParams.keySet())
            #set($params = $allParams.get($type))
        "$type" : {
            #foreach($paramName in $params.keySet())
            "$paramName" : "$util.escapeJavaScript($params.get($paramName))"
                #if($foreach.hasNext),#end
            #end
        }
            #if($foreach.hasNext),#end
        #end

        },

        "stage-variables" : {

        #foreach($key in $stageVariables.keySet())

        "$key" : "$util.escapeJavaScript($stageVariables.get($key))"
            #if($foreach.hasNext),#end
        #end

        },

        "context" : {
            "account-id" : "$context.identity.accountId",
            "api-id" : "$context.apiId",
            "api-key" : "$context.identity.apiKey",
            "authorizer-principal-id" : "$context.authorizer.principalId",
            "caller" : "$context.identity.caller",
            "cognito-authentication-provider" : "$context.identity.cognitoAuthenticationProvider",
            "cognito-authentication-type" : "$context.identity.cognitoAuthenticationType",
            "cognito-identity-id" : "$context.identity.cognitoIdentityId",
            "cognito-identity-pool-id" : "$context.identity.cognitoIdentityPoolId",
            "http-method" : "$context.httpMethod",
            "stage" : "$context.stage",
            "source-ip" : "$context.identity.sourceIp",
            "user" : "$context.identity.user",
            "user-agent" : "$context.identity.userAgent",
            "user-arn" : "$context.identity.userArn",
            "request-id" : "$context.requestId",
            "resource-id" : "$context.resourceId",
            "resource-path" : "$context.resourcePath"
            }
        }

а затем по пути:

  x-amazon-apigateway-integration:
    requestTemplates:
      application/json: 
        $ref: '#/definitions/MyAPI'
    uri: >-
      arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:8712xxxxxxxx:function:lambdaTest_v3/invocations
    passthroughBehavior: never
    responses:
      default:
        statusCode: '200'
    httpMethod: POST
    type: aws