Add EDMEulerScheduler (#7109)

* Add EDMEulerScheduler

* address review comments

* fix import

* fix test

* add tests

* add co-author

Co-authored-by:  @dg845 [email protected]

Author: patil-suraj

src/diffusers/__init__.py

@@ -144,6 +144,7 @@
             "DPMSolverMultistepInverseScheduler",
             "DPMSolverMultistepScheduler",
             "DPMSolverSinglestepScheduler",
+            "EDMEulerScheduler",
             "EulerAncestralDiscreteScheduler",
             "EulerDiscreteScheduler",
             "HeunDiscreteScheduler",
@@ -526,6 +527,7 @@
             DPMSolverMultistepInverseScheduler,
             DPMSolverMultistepScheduler,
             DPMSolverSinglestepScheduler,
+            EDMEulerScheduler,
             EulerAncestralDiscreteScheduler,
             EulerDiscreteScheduler,
             HeunDiscreteScheduler,

src/diffusers/schedulers/__init__.py

@@ -52,6 +52,7 @@
     _import_structure["scheduling_dpmsolver_multistep"] = ["DPMSolverMultistepScheduler"]
     _import_structure["scheduling_dpmsolver_multistep_inverse"] = ["DPMSolverMultistepInverseScheduler"]
     _import_structure["scheduling_dpmsolver_singlestep"] = ["DPMSolverSinglestepScheduler"]
+    _import_structure["scheduling_edm_euler"] = ["EDMEulerScheduler"]
     _import_structure["scheduling_euler_ancestral_discrete"] = ["EulerAncestralDiscreteScheduler"]
     _import_structure["scheduling_euler_discrete"] = ["EulerDiscreteScheduler"]
     _import_structure["scheduling_heun_discrete"] = ["HeunDiscreteScheduler"]
@@ -144,6 +145,7 @@
         from .scheduling_dpmsolver_multistep import DPMSolverMultistepScheduler
         from .scheduling_dpmsolver_multistep_inverse import DPMSolverMultistepInverseScheduler
         from .scheduling_dpmsolver_singlestep import DPMSolverSinglestepScheduler
+        from .scheduling_edm_euler import EDMEulerScheduler
         from .scheduling_euler_ancestral_discrete import EulerAncestralDiscreteScheduler
         from .scheduling_euler_discrete import EulerDiscreteScheduler
         from .scheduling_heun_discrete import HeunDiscreteScheduler