Fix amaranth __all__ (#16)

Author: tilk

amaranth-stubs/__init__.pyi

@@ -4,4 +4,14 @@ This type stub file was generated by pyright.
 
 from .hdl import *
 
-__all__ = ["Shape", "unsigned", "signed", "Value", "Const", "C", "Mux", "Cat", "Array", "Signal", "ClockSignal", "ResetSignal", "Module", "ClockDomain", "Elaboratable", "Fragment", "Instance", "Memory", "Record", "DomainRenamer", "ResetInserter", "EnableInserter"]
+__all__ = [
+    "Shape", "unsigned", "signed",
+    "Value", "Const", "C", "Mux", "Cat", "Array", "Signal", "ClockSignal", "ResetSignal",
+    "Format", "Print", "Assert",
+    "Module",
+    "ClockDomain",
+    "Elaboratable", "Fragment", "Instance",
+    "Memory",
+    "Record",
+    "DomainRenamer", "ResetInserter", "EnableInserter",
+]