funca() (
	echo func-a
)

funcb() ( echo func-b )

funcc() (
	echo func-c
) 2>&1

type funca
type funcb
type funcc

funca
funcb
funcc

# when not in posix mode, bash allows non-identifiers as function names
set +o posix
foo-bar()
{
	:;
}

declare -F foo-bar
declare -f foo-bar