Apply chenges from master

Author: npolina4

dpnp/dpnp_iface_mathematical.py

@@ -2412,8 +2412,8 @@ def modf(x1, **kwargs):
     ti._nextafter_result_type,
     ti._nextafter,
     _NEXTAFTER_DOCSTRING,
-    mkl_fn_to_call=vmi._mkl_nextafter_to_call,
-    mkl_impl_fn=vmi._nextafter,
+    mkl_fn_to_call="_mkl_nextafter_to_call",
+    mkl_impl_fn="_nextafter",
 )
 
 

dpnp/dpnp_iface_trigonometric.py

@@ -46,6 +46,7 @@
 import dpctl.tensor._type_utils as dtu
 
 import dpnp
+import dpnp.backend.extensions.ufunc._ufunc_impl as ufi
 
 from .dpnp_algo.dpnp_elementwise_common import DPNPBinaryFunc, DPNPUnaryFunc
 from .dpnp_utils.dpnp_utils_reduction import dpnp_wrap_reduction_call