Tells us if node element has defined styling.

    :Args:
      - node (:class:`ooxml.doc.Element`): Element

    :Returns:
      True or False

def has_style(node):    
    """Tells us if node element has defined styling.

    :Args:
      - node (:class:`ooxml.doc.Element`): Element

    :Returns:
      True or False

    """

    elements = ['b', 'i', 'u', 'strike', 'color', 'jc', 'sz', 'ind', 'superscript', 'subscript', 'small_caps']

    return any([True for elem in elements if elem in node.rpr])