FeatureOption

Overview

One option inside a feature section.

types restricts accepted values by isinstance. validate receives a declared value and returns an error message, or None when the value is acceptable. merge combines an inherited value with an overriding one. Without it, a declaration replaces the inherited value. migration_relevant marks an option whose value a feature's migration generation reads.

__init__

Signature

__init__(default, types, validate, merge, migration_relevant)

Parameters

Name	Type	Required	Default	Description
default	typing.Any	no	None
types	tuple[type, ...]	no	()
validate	collections.abc.Callable[[typing.Any], str | None] | None	no	None
merge	collections.abc.Callable[[typing.Any, typing.Any], typing.Any] | None	no	None
migration_relevant	bool	no	False

Source

<string>

default

merge

migration_relevant

types

validate

Source

server/vueda/core/features.py:31