text: # coding=utf-8
  # --------------------------------------------------------------------------
  # Copyright (c) Microsoft Corporation. All rights reserved.
  # Licensed under the MIT License. See License.txt in the project root for license information.
  # Code generated by Microsoft (R) AutoRest Code Generator.
  # Changes may cause incorrect behavior and will be lost if the code is regenerated.
  # --------------------------------------------------------------------------
  from typing import Any, AsyncIterable, Callable, Dict, Generic, Optional, TypeVar, Union
  import warnings
  
  from azure.core.async_paging import AsyncItemPaged, AsyncList
  from azure.core.exceptions import ClientAuthenticationError, HttpResponseError, ResourceExistsError, ResourceNotFoundError, map_error
  from azure.core.pipeline import PipelineResponse
  from azure.core.pipeline.transport import AsyncHttpResponse, HttpRequest
  from azure.core.polling import AsyncLROPoller, AsyncNoPolling, AsyncPollingMethod
  from azure.mgmt.core.exceptions import ARMErrorFormat
  from azure.mgmt.core.polling.async_arm_polling import AsyncARMPolling
  
  from ... import models as _models
  
  T = TypeVar('T')
  ClsType = Optional[Callable[[PipelineResponse[HttpRequest, AsyncHttpResponse], T, Dict[str, Any]], Any]]
  
  class BillingAccountsOperations:
      """BillingAccountsOperations async operations.
  
      You should not instantiate this class directly. Instead, you should create a Client instance that
      instantiates it for you and attaches it as an attribute.
  
      :ivar models: Alias to model classes used in this operation group.
      :type models: ~azure.mgmt.billing.models
      :param client: Client for service requests.
      :param config: Configuration of service client.
      :param serializer: An object model serializer.
      :param deserializer: An object model deserializer.
      """
  
      models = _models
  
      def __init__(self, client, config, serializer, deserializer) -> None:
          self._client = client
          self._serialize = serializer
          self._deserialize = deserializer
          self._config = config
  
      def list(
          self,
          expand: Optional[str] = None,
          **kwargs
      ) -> AsyncIterable["_models.BillingAccountListResult"]:
          """Lists the billing accounts that a user has access to.
  
          :param expand: May be used to expand the soldTo, invoice sections and billing profiles.
          :type expand: str
          :keyword callable cls: A custom type or function that will be passed the direct response
          :return: An iterator like instance of either BillingAccountListResult or the result of cls(response)
          :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.mgmt.billing.models.BillingAccountListResult]
          :raises: ~azure.core.exceptions.HttpResponseError
          """
          cls = kwargs.pop('cls', None)  # type: ClsType["_models.BillingAccountListResult"]
          error_map = {
              401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
          }
          error_map.update(kwargs.pop('error_map', {}))
          api_version = "2020-05-01"
          accept = "application/json"
  
          def prepare_request(next_link=None):
              # Construct headers
              header_parameters = {}  # type: Dict[str, Any]
              header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
  
              if not next_link:
                  # Construct URL
                  url = self.list.metadata['url']  # type: ignore
                  # Construct parameters
                  query_parameters = {}  # type: Dict[str, Any]
                  query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
                  if expand is not None:
                      query_parameters['$expand'] = self._serialize.query("expand", expand, 'str')
  
                  request = self._client.get(url, query_parameters, header_parameters)
              else:
                  url = next_link
                  query_parameters = {}  # type: Dict[str, Any]
                  request = self._client.get(url, query_parameters, header_parameters)
              return request
  
          async def extract_data(pipeline_response):
              deserialized = self._deserialize('BillingAccountListResult', pipeline_response)
              list_of_elem = deserialized.value
              if cls:
                  list_of_elem = cls(list_of_elem)
              return deserialized.next_link or None, AsyncList(list_of_elem)
  
          async def get_next(next_link=None):
              request = prepare_request(next_link)
  
              pipeline_response = await self._client._pipeline.run(request, stream=False, **kwargs)
              response = pipeline_response.http_response
  
              if response.status_code not in [200]:
                  error = self._deserialize.failsafe_deserialize(_models.ErrorResponse, response)
                  map_error(status_code=response.status_code, response=response, error_map=error_map)
                  raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
  
              return pipeline_response
  
          return AsyncItemPaged(
              get_next, extract_data
          )
      list.metadata = {'url': '/providers/Microsoft.Billing/billingAccounts'}  # type: ignore
  
      async def get(
          self,
          billing_account_name: str,
          expand: Optional[str] = None,
          **kwargs
      ) -> "_models.BillingAccount":
          """Gets a billing account by its ID.
  
          :param billing_account_name: The ID that uniquely identifies a billing account.
          :type billing_account_name: str
          :param expand: May be used to expand the soldTo, invoice sections and billing profiles.
          :type expand: str
          :keyword callable cls: A custom type or function that will be passed the direct response
          :return: BillingAccount, or the result of cls(response)
          :rtype: ~azure.mgmt.billing.models.BillingAccount
          :raises: ~azure.core.exceptions.HttpResponseError
          """
          cls = kwargs.pop('cls', None)  # type: ClsType["_models.BillingAccount"]
          error_map = {
              401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
          }
          error_map.update(kwargs.pop('error_map', {}))
          api_version = "2020-05-01"
          accept = "application/json"
  
          # Construct URL
          url = self.get.metadata['url']  # type: ignore
          path_format_arguments = {
              'billingAccountName': self._serialize.url("billing_account_name", billing_account_name, 'str'),
          }
          url = self._client.format_url(url, **path_format_arguments)
  
          # Construct parameters
          query_parameters = {}  # type: Dict[str, Any]
          query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
          if expand is not None:
              query_parameters['$expand'] = self._serialize.query("expand", expand, 'str')
  
          # Construct headers
          header_parameters = {}  # type: Dict[str, Any]
          header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
  
          request = self._client.get(url, query_parameters, header_parameters)
          pipeline_response = await self._client._pipeline.run(request, stream=False, **kwargs)
          response = pipeline_response.http_response
  
          if response.status_code not in [200]:
              map_error(status_code=response.status_code, response=response, error_map=error_map)
              error = self._deserialize.failsafe_deserialize(_models.ErrorResponse, response)
              raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
  
          deserialized = self._deserialize('BillingAccount', pipeline_response)
  
          if cls:
              return cls(pipeline_response, deserialized, {})
  
          return deserialized
      get.metadata = {'url': '/providers/Microsoft.Billing/billingAccounts/{billingAccountName}'}  # type: ignore
  
      async def _update_initial(
          self,
          billing_account_name: str,
          parameters: "_models.BillingAccountUpdateRequest",
          **kwargs
      ) -> Optional["_models.BillingAccount"]:
          cls = kwargs.pop('cls', None)  # type: ClsType[Optional["_models.BillingAccount"]]
          error_map = {
              401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
          }
          error_map.update(kwargs.pop('error_map', {}))
          api_version = "2020-05-01"
          content_type = kwargs.pop("content_type", "application/json")
          accept = "application/json"
  
          # Construct URL
          url = self._update_initial.metadata['url']  # type: ignore
          path_format_arguments = {
              'billingAccountName': self._serialize.url("billing_account_name", billing_account_name, 'str'),
          }
          url = self._client.format_url(url, **path_format_arguments)
  
          # Construct parameters
          query_parameters = {}  # type: Dict[str, Any]
          query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
  
          # Construct headers
          header_parameters = {}  # type: Dict[str, Any]
          header_parameters['Content-Type'] = self._serialize.header("content_type", content_type, 'str')
          header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
  
          body_content_kwargs = {}  # type: Dict[str, Any]
          body_content = self._serialize.body(parameters, 'BillingAccountUpdateRequest')
          body_content_kwargs['content'] = body_content
          request = self._client.patch(url, query_parameters, header_parameters, **body_content_kwargs)
          pipeline_response = await self._client._pipeline.run(request, stream=False, **kwargs)
          response = pipeline_response.http_response
  
          if response.status_code not in [200, 202]:
              map_error(status_code=response.status_code, response=response, error_map=error_map)
              error = self._deserialize.failsafe_deserialize(_models.ErrorResponse, response)
              raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
  
          deserialized = None
          if response.status_code == 200:
              deserialized = self._deserialize('BillingAccount', pipeline_response)
  
          if cls:
              return cls(pipeline_response, deserialized, {})
  
          return deserialized
      _update_initial.metadata = {'url': '/providers/Microsoft.Billing/billingAccounts/{billingAccountName}'}  # type: ignore
  
      async def begin_update(
          self,
          billing_account_name: str,
          parameters: "_models.BillingAccountUpdateRequest",
          **kwargs
      ) -> AsyncLROPoller["_models.BillingAccount"]:
          """Updates the properties of a billing account. Currently, displayName and address can be updated.
          The operation is supported only for billing accounts with agreement type Microsoft Customer
          Agreement.
  
          :param billing_account_name: The ID that uniquely identifies a billing account.
          :type billing_account_name: str
          :param parameters: Request parameters that are provided to the update billing account
           operation.
          :type parameters: ~azure.mgmt.billing.models.BillingAccountUpdateRequest
          :keyword callable cls: A custom type or function that will be passed the direct response
          :keyword str continuation_token: A continuation token to restart a poller from a saved state.
          :keyword polling: Pass in True if you'd like the AsyncARMPolling polling method,
           False for no polling, or your own initialized polling object for a personal polling strategy.
          :paramtype polling: bool or ~azure.core.polling.AsyncPollingMethod
          :keyword int polling_interval: Default waiting time between two polls for LRO operations if no Retry-After header is present.
          :return: An instance of AsyncLROPoller that returns either BillingAccount or the result of cls(response)
          :rtype: ~azure.core.polling.AsyncLROPoller[~azure.mgmt.billing.models.BillingAccount]
          :raises ~azure.core.exceptions.HttpResponseError:
          """
          polling = kwargs.pop('polling', True)  # type: Union[bool, AsyncPollingMethod]
          cls = kwargs.pop('cls', None)  # type: ClsType["_models.BillingAccount"]
          lro_delay = kwargs.pop(
              'polling_interval',
              self._config.polling_interval
          )
          cont_token = kwargs.pop('continuation_token', None)  # type: Optional[str]
          if cont_token is None:
              raw_result = await self._update_initial(
                  billing_account_name=billing_account_name,
                  parameters=parameters,
                  cls=lambda x,y,z: x,
                  **kwargs
              )
  
          kwargs.pop('error_map', None)
          kwargs.pop('content_type', None)
  
          def get_long_running_output(pipeline_response):
              deserialized = self._deserialize('BillingAccount', pipeline_response)
  
              if cls:
                  return cls(pipeline_response, deserialized, {})
              return deserialized
  
          path_format_arguments = {
              'billingAccountName': self._serialize.url("billing_account_name", billing_account_name, 'str'),
          }
  
          if polling is True: polling_method = AsyncARMPolling(lro_delay, lro_options={'final-state-via': 'azure-async-operation'}, path_format_arguments=path_format_arguments,  **kwargs)
          elif polling is False: polling_method = AsyncNoPolling()
          else: polling_method = polling
          if cont_token:
              return AsyncLROPoller.from_continuation_token(
                  polling_method=polling_method,
                  continuation_token=cont_token,
                  client=self._client,
                  deserialization_callback=get_long_running_output
              )
          else:
              return AsyncLROPoller(self._client, raw_result, get_long_running_output, polling_method)
      begin_update.metadata = {'url': '/providers/Microsoft.Billing/billingAccounts/{billingAccountName}'}  # type: ignore
  
      def list_invoice_sections_by_create_subscription_permission(
          self,
          billing_account_name: str,
          **kwargs
      ) -> AsyncIterable["_models.InvoiceSectionListWithCreateSubPermissionResult"]:
          """Lists the invoice sections for which the user has permission to create Azure subscriptions. The
          operation is supported only for billing accounts with agreement type Microsoft Customer
          Agreement.
  
          :param billing_account_name: The ID that uniquely identifies a billing account.
          :type billing_account_name: str
          :keyword callable cls: A custom type or function that will be passed the direct response
          :return: An iterator like instance of either InvoiceSectionListWithCreateSubPermissionResult or the result of cls(response)
          :rtype: ~azure.core.async_paging.AsyncItemPaged[~azure.mgmt.billing.models.InvoiceSectionListWithCreateSubPermissionResult]
          :raises: ~azure.core.exceptions.HttpResponseError
          """
          cls = kwargs.pop('cls', None)  # type: ClsType["_models.InvoiceSectionListWithCreateSubPermissionResult"]
          error_map = {
              401: ClientAuthenticationError, 404: ResourceNotFoundError, 409: ResourceExistsError
          }
          error_map.update(kwargs.pop('error_map', {}))
          api_version = "2020-05-01"
          accept = "application/json"
  
          def prepare_request(next_link=None):
              # Construct headers
              header_parameters = {}  # type: Dict[str, Any]
              header_parameters['Accept'] = self._serialize.header("accept", accept, 'str')
  
              if not next_link:
                  # Construct URL
                  url = self.list_invoice_sections_by_create_subscription_permission.metadata['url']  # type: ignore
                  path_format_arguments = {
                      'billingAccountName': self._serialize.url("billing_account_name", billing_account_name, 'str'),
                  }
                  url = self._client.format_url(url, **path_format_arguments)
                  # Construct parameters
                  query_parameters = {}  # type: Dict[str, Any]
                  query_parameters['api-version'] = self._serialize.query("api_version", api_version, 'str')
  
                  request = self._client.post(url, query_parameters, header_parameters)
              else:
                  url = next_link
                  query_parameters = {}  # type: Dict[str, Any]
                  request = self._client.get(url, query_parameters, header_parameters)
              return request
  
          async def extract_data(pipeline_response):
              deserialized = self._deserialize('InvoiceSectionListWithCreateSubPermissionResult', pipeline_response)
              list_of_elem = deserialized.value
              if cls:
                  list_of_elem = cls(list_of_elem)
              return deserialized.next_link or None, AsyncList(list_of_elem)
  
          async def get_next(next_link=None):
              request = prepare_request(next_link)
  
              pipeline_response = await self._client._pipeline.run(request, stream=False, **kwargs)
              response = pipeline_response.http_response
  
              if response.status_code not in [200]:
                  error = self._deserialize.failsafe_deserialize(_models.ErrorResponse, response)
                  map_error(status_code=response.status_code, response=response, error_map=error_map)
                  raise HttpResponseError(response=response, model=error, error_format=ARMErrorFormat)
  
              return pipeline_response
  
          return AsyncItemPaged(
              get_next, extract_data
          )
      list_invoice_sections_by_create_subscription_permission.metadata = {'url': '/providers/Microsoft.Billing/billingAccounts/{billingAccountName}/listInvoiceSectionsWithCreateSubscriptionPermission'}  # type: ignore
  