Export utility inside_function to the public API.

PiperOrigin-RevId: 323943686
Change-Id: Ie50ea6880731feb99b0d4d243aab8e468bb7b86b

tensorflow/python/framework/ops.py

@@ -5820,7 +5820,24 @@ def executing_eagerly_outside_functions():
       return context.executing_eagerly()
 
 
+@tf_export("inside_function", v1=[])
 def inside_function():
+  """Indicates whether the caller code is executing inside a `tf.function`.
+
+  Returns:
+    Boolean, True if the caller code is executing inside a `tf.function`
+    rather than eagerly.
+
+  Example:
+
+  >>> tf.inside_function()
+  False
+  >>> @tf.function
+  ... def f():
+  ...   print(tf.inside_function())
+  >>> f()
+  True
+  """
   return get_default_graph().building_function
 
 

tensorflow/tools/api/golden/v2/tensorflow.pbtxt

@@ -744,6 +744,10 @@ tf_module {
     name: "init_scope"
     argspec: "args=[], varargs=None, keywords=None, defaults=None"
   }
+  member_method {
+    name: "inside_function"
+    argspec: "args=[], varargs=None, keywords=None, defaults=None"
+  }
   member_method {
     name: "is_tensor"
     argspec: "args=[\'x\'], varargs=None, keywords=None, defaults=None"