# -*- coding: utf-8 -*-
"""Utilities for node filters."""
from ...constants import MODIFIER
from ...typing import EdgeData
__all__ = [
'part_has_modifier',
]
[docs]def part_has_modifier(edge_data: EdgeData, part: str, modifier: str) -> bool:
"""Return true if the modifier is in the given subject/object part.
:param edge_data: PyBEL edge data dictionary
:param part: either :data:`pybel.constants.SUBJECT` or :data:`pybel.constants.OBJECT`
:param modifier: The modifier to look for
"""
part_data = edge_data.get(part)
if part_data is None:
return False
return part_data.get(MODIFIER) == modifier