[Code scan] Fix docgen raw-anchor test to toggle the real RAW_ANCHOR global

[njzjz]

This issue was found by a Codex global code scan of the repository.

Affected code:

dargs/tests/test_docgen.py

Lines 250 to 263 in b4db564

	def test_dpmd(self) -> None:
	from .dpmdargs import gen_doc
	dargs.RAW_ANCHOR = False
	docstr = gen_doc(make_anchor=True, make_link=True)
	# print("\n\n"+docstr)
	# with open("out.rst", "w") as of:
	# print(docstr, file=of)
	# now testing raw anchor
	dargs.RAW_ANCHOR = True
	docstr = gen_doc(make_anchor=True, make_link=True)
	# print("\n\n"+docstr)
	# with open("outr.rst", "w") as of:
	# print(docstr, file=of)

dargs/dargs/dargs.py

Lines 38 to 39 in b4db564

	INDENT = " " # doc is indented by four spaces
	RAW_ANCHOR = False # whether to use raw html anchors or RST ones

dargs/dargs/__init__.py

Lines 3 to 5 in b4db564

	from .dargs import Argument, ArgumentEncoder, Variant
	__all__ = ["Argument", "ArgumentEncoder", "Variant"]

Problem:
tests/test_docgen.py sets dargs.RAW_ANCHOR = True, but RAW_ANCHOR is defined in dargs.dargs, not exported from dargs.__init__. Assigning to the package creates a new package attribute and leaves the actual global used by make_rst_refid() unchanged.

Reproducer:

import dargs
import dargs.dargs as dd

print(hasattr(dargs, "RAW_ANCHOR"), dd.RAW_ANCHOR)
dargs.RAW_ANCHOR = True
print(dargs.RAW_ANCHOR, dd.RAW_ANCHOR)

Observed behavior:
The package attribute becomes True, but dargs.dargs.RAW_ANCHOR remains False, so the raw-anchor branch is not covered.

Expected behavior:
The test should mutate dargs.dargs.RAW_ANCHOR directly or the package should intentionally export and synchronize that setting.