RequestAcquisition.
        [Preview API]
        :param :class:`<ExtensionAcquisitionRequest> <azure.devops.v5_1.gallery.models.ExtensionAcquisitionRequest>` acquisition_request:
        :rtype: :class:`<ExtensionAcquisitionRequest> <azure.devops.v5_1.gallery.models.ExtensionAcquisitionRequest>`

def request_acquisition(self, acquisition_request):
        """RequestAcquisition.
        [Preview API]
        :param :class:`<ExtensionAcquisitionRequest> <azure.devops.v5_1.gallery.models.ExtensionAcquisitionRequest>` acquisition_request:
        :rtype: :class:`<ExtensionAcquisitionRequest> <azure.devops.v5_1.gallery.models.ExtensionAcquisitionRequest>`
        """
        content = self._serialize.body(acquisition_request, 'ExtensionAcquisitionRequest')
        response = self._send(http_method='POST',
                              location_id='3adb1f2d-e328-446e-be73-9f6d98071c45',
                              version='5.1-preview.1',
                              content=content)
        return self._deserialize('ExtensionAcquisitionRequest', response)