docs: public ModifyInstanceAttributeRequest withBlockDeviceMappings(InstanceBlockDeviceMappingSpecification... blockDeviceMappings) {
          if (this.blockDeviceMappings == null) {
              setBlockDeviceMappings(new com.amazonaws.internal.SdkInternalList<InstanceBlockDeviceMappingSpecification>(blockDeviceMappings.length));
          }
          for (InstanceBlockDeviceMappingSpecification ele : blockDeviceMappings) {
              this.blockDeviceMappings.add(ele);
          }
          return this;
      }