fn testFormat(a: Managed, expected: []const u8) !void
a: Managed
expected: []const u8
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fn testFormat(a: Managed, expected: []const u8) !void { try std.testing.expectFmt(expected, "{f}", .{a}); try std.testing.expectFmt(expected, "{f}", .{a.toMutable()}); try std.testing.expectFmt(expected, "{f}", .{a.toConst()}); }