private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetDeviceDetails() {
        if (deviceDetails_ == null) {
            return com.google.protobuf.MapField
                    .emptyMapField(DeviceDetailsDefaultEntryHolder.defaultEntry);
        }
        return deviceDetails_;
    }
<code>.im.turms.proto.DeviceType device_type = 5;</code>

@return The deviceType.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/CreateSessionRequest.java