code: function enrichMethodNode(methodNode, method) {
    method.description && (methodNode.description = method.description)
  
    if (method.tags.route) {
      let httpPath = method.tags.route
      let httpMethod = 'GET'
      const sepPos = httpPath.indexOf(' ')
  
      if (sepPos !== -1) {
        httpMethod = httpPath.substr(0, sepPos).toUpperCase()
        httpPath = httpPath.substr(sepPos + 1)
  
        if (!isValidHttpMethod(httpMethod)) {
          throw new Error(`Unsupported HTTP method [${httpMethod}] for ${method.name} method`)
        }
      }
  
      methodNode.method = httpMethod
      methodNode.path = httpPath
    }
  
    return methodNode
  }
docs: Enriches service method node by adding 'method', 'route' and 'description' attributes.
  @param {Object} methodNode
  @param {Object} method
  @returns {Object} methodNode