get_default_qconfig_mapping
class torch.ao.quantization.qconfig_mapping.get_default_qconfig_mapping(backend='x86', version=0)
Return the default QConfigMapping for post training quantization.
Parameters:
      * backend (***) -- the quantization backend for the default
        qconfig mapping, should be one of ["x86" (default), "fbgemm",
        "qnnpack", "onednn"]
  * **version** (***) -- the version for the default qconfig
    mapping

Return type:
      QConfigMapping