def test_epsg4326_init():
assert is_latlng({'init': 'epsg:4326'}) is True
def test_epsg4326():
assert is_latlng('EPSG:4326') is True
def test_CRS84():
assert is_latlng('urn:ogc:def:crs:OGC:1.3:CRS84') is False
def test_epsg3857():
assert is_latlng('epsg:3857') is False
def test_None():
assert is_latlng(None) is False
def test_4326():
assert is_latlng(4326) is True
