/// <summary>
        /// Create
        /// </summary>
        /// <exception cref="PeakUp.Integrations.Parasut.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="eInvoiceForm"></param>
        /// <param name="companyId">Firma ID</param>
        /// <returns>Task of InlineResponse2015</returns>
        public async System.Threading.Tasks.Task <InlineResponse2015> CreateEInvoiceAsync(EInvoiceForm eInvoiceForm, int?companyId)
        {
            ApiResponse <InlineResponse2015> localVarResponse = await CreateEInvoiceAsyncWithHttpInfo(eInvoiceForm, companyId);

            return(localVarResponse.Data);
        }
        /// <summary>
        /// Create
        /// </summary>
        /// <exception cref="PeakUp.Integrations.Parasut.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="eInvoiceForm"></param>
        /// <param name="companyId">Firma ID</param>
        /// <returns>Task of ApiResponse (InlineResponse2015)</returns>
        public async System.Threading.Tasks.Task <ApiResponse <InlineResponse2015> > CreateEInvoiceAsyncWithHttpInfo(EInvoiceForm eInvoiceForm, int?companyId)
        {
            // verify the required parameter 'eInvoiceForm' is set
            if (eInvoiceForm == null)
            {
                throw new ApiException(400, "Missing required parameter 'eInvoiceForm' when calling EInvoicesApi->CreateEInvoice");
            }
            // verify the required parameter 'companyId' is set
            if (companyId == null)
            {
                throw new ApiException(400, "Missing required parameter 'companyId' when calling EInvoicesApi->CreateEInvoice");
            }

            var    localVarPath         = "/{company_id}/e_invoices";
            var    localVarPathParams   = new Dictionary <String, String>();
            var    localVarQueryParams  = new Dictionary <String, String>();
            var    localVarHeaderParams = new Dictionary <String, String>(Configuration.DefaultHeader);
            var    localVarFormParams   = new Dictionary <String, String>();
            var    localVarFileParams   = new Dictionary <String, FileParameter>();
            Object localVarPostBody     = null;

            // to determine the Content-Type header
            String[] localVarHttpContentTypes = new String[] {
                "application/vnd.api+json"
            };
            String localVarHttpContentType = Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes);

            // to determine the Accept header
            String[] localVarHttpHeaderAccepts = new String[] {
                "application/vnd.api+json"
            };
            String localVarHttpHeaderAccept = Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts);

            if (localVarHttpHeaderAccept != null)
            {
                localVarHeaderParams.Add("Accept", localVarHttpHeaderAccept);
            }

            // set "format" to json by default
            // e.g. /pet/{petId}.{format} becomes /pet/{petId}.json
            localVarPathParams.Add("format", "json");
            if (companyId != null)
            {
                localVarPathParams.Add("company_id", Configuration.ApiClient.ParameterToString(companyId));                    // path parameter
            }
            if (eInvoiceForm != null && eInvoiceForm.GetType() != typeof(byte[]))
            {
                localVarPostBody = Configuration.ApiClient.Serialize(eInvoiceForm); // http body (model) parameter
            }
            else
            {
                localVarPostBody = eInvoiceForm; // byte array
            }

            // authentication (parasut_auth) required
            // oauth required
            if (!String.IsNullOrEmpty(Configuration.AccessToken))
            {
                localVarHeaderParams["Authorization"] = "Bearer " + Configuration.AccessToken;
            }

            // make the HTTP request
            IRestResponse localVarResponse = (IRestResponse)await Configuration.ApiClient.CallApiAsync(localVarPath,
                                                                                                       Method.POST, localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarFormParams, localVarFileParams,
                                                                                                       localVarPathParams, localVarHttpContentType);

            int localVarStatusCode = (int)localVarResponse.StatusCode;

            if (ExceptionFactory != null)
            {
                Exception exception = ExceptionFactory("CreateEInvoice", localVarResponse);
                if (exception != null)
                {
                    throw exception;
                }
            }

            return(new ApiResponse <InlineResponse2015>(localVarStatusCode,
                                                        localVarResponse.Headers.ToDictionary(x => x.Name, x => x.Value.ToString()),
                                                        (InlineResponse2015)Configuration.ApiClient.Deserialize(localVarResponse, typeof(InlineResponse2015))));
        }
        /// <summary>
        /// Create
        /// </summary>
        /// <exception cref="PeakUp.Integrations.Parasut.Client.ApiException">Thrown when fails to make API call</exception>
        /// <param name="eInvoiceForm"></param>
        /// <param name="companyId">Firma ID</param>
        /// <returns>InlineResponse2015</returns>
        public InlineResponse2015 CreateEInvoice(EInvoiceForm eInvoiceForm, int?companyId)
        {
            ApiResponse <InlineResponse2015> localVarResponse = CreateEInvoiceWithHttpInfo(eInvoiceForm, companyId);

            return(localVarResponse.Data);
        }