Imports of package rand

PathSynopsis
encoding/binaryPackage binary implements simple translation between numbers and byte sequences and encoding and decoding of varints.
ioPackage io provides basic interfaces to I/O primitives.
mathPackage math provides basic constants and mathematical functions.
math/bitsPackage bits implements bit counting and manipulation functions for the predeclared unsigned integer types.
syncPackage sync provides basic synchronization primitives such as mutual exclusion locks.