syntax = "proto3";

message KeyValue {
    string key = 1;
    oneof one_of_str_value { string str_value = 2; };
    oneof one_of_int_value { int64 int_value = 3; };
    oneof one_of_float_value { double float_value = 4; };
    oneof one_of_bool_value { bool bool_value = 5; };
}
