@Override
	public boolean allow(@Nonnull String key) {
		return allowed.test(key);
	}
@param isDeclaration
       {@code true} for the source to model a declaration.
       {@code false} for the source to model a reference.
@param whitelist
		Whitelist function, where {@code true} is allowed.
recaf-ui/src/main/java/software/coley/recaf/services/cell/context/BasicWhitelistingContextSource.java