Fix misplaced parenthesis in custom scalar docs

[enoua5]

The implementation of the Base64 custom scalar given in the docs differs from the implementation actually used. The implementation currently shown in the docs raises an AttributeError when used. It appears that the docs were originally created with an extra stray close paren, and the wrong one was deleted when that was fixed.

Description

It's the user's input that needs to be encoded as bytes, not the output of base64.b64decode, which is already bytes.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Documentation

Checklist

• [n/a] My code follows the code style of this project.
• [n/a] My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• [n/a] I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[sourcery-ai]

We have skipped reviewing this pull request. All the files appear to be documentation files, which we're not great at reviewing... yet!

[DoctorJohn]

Good spot @enoua5, thanks for the PR!

The updated code now indeed matches our internal implementiation:

strawberry/strawberry/scalars.py

Lines 46 to 54 in 808d898

	Base64 = scalar(
	NewType("Base64", bytes),
	description=(
	"Represents binary data as Base64-encoded strings, using the standard alphabet."
	),
	specified_by_url="https://datatracker.ietf.org/doc/html/rfc4648.html#section-4",
	serialize=lambda v: base64.b64encode(v).decode("utf-8"),
	parse_value=lambda v: base64.b64decode(v.encode("utf-8")),
	)

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