def get_firstlevel_children(node, child_tag):
    """ Searches for the specified children of a node in the xml tree.
    Returns only first level children.

    :Arguments:

    1. child_tag (str) = Name of the child tag
    2. node (xml.etree.ElementTree.Element) = node that needs to be
    searched

    :Returns:

    list = list of all child nodes of the given node

    """
    child_list = node.findall(child_tag)
    return child_list