private com.google.protobuf.MapField<java.lang.String, java.lang.String> internalGetMutableDeviceDetails() {
            if (deviceDetails_ == null) {
                deviceDetails_ = com.google.protobuf.MapField
                        .newMapField(DeviceDetailsDefaultEntryHolder.defaultEntry);
            }
            if (!deviceDetails_.isMutable()) {
                deviceDetails_ = deviceDetails_.copy();
            }
            bitField0_ |= 0x00000020;
            onChanged();
            return deviceDetails_;
        }
<code>.im.turms.proto.DeviceType device_type = 5;</code>

@return This builder for chaining.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/CreateSessionRequest.java