human
Here's a good function header given the following:
I wrote the below code

    def is_import_stmt(node):
        return ((node.type == syms.simple_stmt) and node.children and is_import(node.children[0]))
    root = find_root(node)
    if does_tree_import(package, name, root):
        return
    else:
        insert_pos = offset = 0
        for (idx, node) in enumerate(root.children):
            if (not is_import_stmt(node)):
                continue
            for (offset, node2) in enumerate(root.children[idx:]):
                if (not is_import_stmt(node2)):
                    break
            insert_pos = (idx + offset)
            break
        if (insert_pos == 0):
            for (idx, node) in enumerate(root.children):
                if ((node.type == syms.simple_stmt) and node.children and (node.children[0].type == token.STRING)):
                    insert_pos = (idx + 1)
                    break
        if (package is None):
            import_ = Node(syms.import_name, [Leaf(token.NAME, 'import'), Leaf(token.NAME, name, prefix='    ')])
        else:
            import_ = FromImport(package, [Leaf(token.NAME, name, prefix='    ')])
        children = [import_, Newline()]
        root.insert_child(insert_pos, Node(syms.simple_stmt, children))
        return

What's a good function header?
assistant
#Here's a good function header.

def touch_import(package, name, node):