@staticmethod
def set_node_vertical_alignment_property(node_properties, valign):
    """Set the vertical alignment of label in node_properties.

		Args:
			node_properties (dict): Dictionary of node attributes. Key-value pairs will be used to set data associated with the node.
			valign (str): Vertical alignment of text.

		Returns:
			dict: Dictionary of node attributes.
		"""
    node_properties.update({'text-valign': valign})
    return node_properties
