| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/tetratelabs/wazero/sys | Package sys includes constants and types used by both public and internal APIs. |
| io | Package io provides basic interfaces to I/O primitives. |
| io/fs | Package fs defines basic interfaces to a file system. |
| math | Package math provides basic constants and mathematical functions. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| syscall | Package syscall contains an interface to the low-level operating system primitives. |