STRING_TEST='string_test'
BOOL_TEST=True
U64_TEST=18446744073709551615
I64_TEST=9223372036854775807
U32_TEST=4294967295
I32_TEST=2147483647
U16_TEST=65535
I16_TEST=32767
U8_TEST=255
I8_TEST=127
F64_TEST=1.7976931348623157e+308
F32_TEST=3.4028235e+38