Updates the specified context.

        Example:
            >>> import dialogflow_v2
            >>>
            >>> client = dialogflow_v2.ContextsClient()
            >>>
            >>> # TODO: Initialize ``context``:
            >>> context = {}
            >>>
            >>> response = client.update_context(context)

        Args:
            context (Union[dict, ~google.cloud.dialogflow_v2.types.Context]): Required. The context to update.
                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.dialogflow_v2.types.Context`
            update_mask (Union[dict, ~google.cloud.dialogflow_v2.types.FieldMask]): Optional. The mask to control which fields get updated.
                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.dialogflow_v2.types.FieldMask`
            retry (Optional[google.api_core.retry.Retry]):  A retry object used
                to retry requests. If ``None`` is specified, requests will not
                be retried.
            timeout (Optional[float]): The amount of time, in seconds, to wait
                for the request to complete. Note that if ``retry`` is
                specified, the timeout applies to each individual attempt.
            metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
                that is provided to the method.

        Returns:
            A :class:`~google.cloud.dialogflow_v2.types.Context` instance.

        Raises:
            google.api_core.exceptions.GoogleAPICallError: If the request
                    failed for any reason.
            google.api_core.exceptions.RetryError: If the request failed due
                    to a retryable error and retry attempts failed.
            ValueError: If the parameters are invalid.

def update_context(self,
                       context,
                       update_mask=None,
                       retry=google.api_core.gapic_v1.method.DEFAULT,
                       timeout=google.api_core.gapic_v1.method.DEFAULT,
                       metadata=None):
        """
        Updates the specified context.

        Example:
            >>> import dialogflow_v2
            >>>
            >>> client = dialogflow_v2.ContextsClient()
            >>>
            >>> # TODO: Initialize ``context``:
            >>> context = {}
            >>>
            >>> response = client.update_context(context)

        Args:
            context (Union[dict, ~google.cloud.dialogflow_v2.types.Context]): Required. The context to update.
                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.dialogflow_v2.types.Context`
            update_mask (Union[dict, ~google.cloud.dialogflow_v2.types.FieldMask]): Optional. The mask to control which fields get updated.
                If a dict is provided, it must be of the same form as the protobuf
                message :class:`~google.cloud.dialogflow_v2.types.FieldMask`
            retry (Optional[google.api_core.retry.Retry]):  A retry object used
                to retry requests. If ``None`` is specified, requests will not
                be retried.
            timeout (Optional[float]): The amount of time, in seconds, to wait
                for the request to complete. Note that if ``retry`` is
                specified, the timeout applies to each individual attempt.
            metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
                that is provided to the method.

        Returns:
            A :class:`~google.cloud.dialogflow_v2.types.Context` instance.

        Raises:
            google.api_core.exceptions.GoogleAPICallError: If the request
                    failed for any reason.
            google.api_core.exceptions.RetryError: If the request failed due
                    to a retryable error and retry attempts failed.
            ValueError: If the parameters are invalid.
        """
        # Wrap the transport method to add retry and timeout logic.
        if 'update_context' not in self._inner_api_calls:
            self._inner_api_calls[
                'update_context'] = google.api_core.gapic_v1.method.wrap_method(
                    self.transport.update_context,
                    default_retry=self._method_configs['UpdateContext'].retry,
                    default_timeout=self._method_configs['UpdateContext']
                    .timeout,
                    client_info=self._client_info,
                )

        request = context_pb2.UpdateContextRequest(
            context=context,
            update_mask=update_mask,
        )
        return self._inner_api_calls['update_context'](
            request, retry=retry, timeout=timeout, metadata=metadata)