Added documentation for get_layout API (#13937)

* Added documentation for get_layout API

* Fixed typo

docs/OV_Runtime_UG/layout_overview.md

@@ -147,6 +147,26 @@ A layout can be converted to a string in the advanced syntax format. It can be u
 
 @endsphinxtabset
 
+### Get layout from Model Input/Output
+
+OpenVINO provides helpers which provide a simple interface to get layout from Model input or output.
+
+@sphinxtabset
+
+@sphinxtab{C++}
+
+@snippet docs/snippets/ov_layout.cpp ov:layout:get_from_model
+
+@endsphinxtab
+
+@sphinxtab{Python}
+
+@snippet docs/snippets/ov_layout.py ov:layout:get_from_model
+
+@endsphinxtab
+
+@endsphinxtabset
+
 ## See also
 
 * API Reference: <code>ov::Layout</code> C++ class 

docs/snippets/ov_layout.cpp

@@ -1,7 +1,8 @@
 // Copyright (C) 2018-2022 Intel Corporation
 // SPDX-License-Identifier: Apache-2.0
 //
-#include <openvino/core/layout.hpp>
+#include "openvino/core/layout.hpp"
+#include "openvino/core/model.hpp"
 
 int main() {
     ov::Layout layout;
@@ -54,5 +55,13 @@ layout = ov::Layout("NCHW");
 std::cout << layout.to_string(); // prints [N,C,H,W]
 //! [ov:layout:dump]
 
+std::shared_ptr<ov::Model> model;
+//! [ov:layout:get_from_model]
+// Get layout for model input
+layout = ov::layout::get_layout(model->input("input_tensor_name"));
+// Get layout for model with single output
+layout = ov::layout::get_layout(model->output());
+//! [ov:layout:get_from_model]
+
     return 0;
 }

docs/snippets/ov_layout.py

@@ -1,6 +1,7 @@
 # Copyright (C) 2018-2022 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
 #
+import openvino.runtime as ov
 
 # ! [ov:layout:simple]
 from openvino.runtime import Layout
@@ -52,3 +53,27 @@ layout_helpers.width_idx(Layout('...HW'))
 layout = Layout('NCHW')
 print(layout)    # prints [N,C,H,W]
 # ! [ov:layout:dump]
+
+
+def create_simple_model():
+    # This example shows how to create ov::Function
+    #
+    # Parameter--->Multiply--->Add--->Result
+    #    Constant---'          /
+    #              Constant---'
+    data = ov.opset8.parameter([3, 1, 2], ov.Type.f32)
+    mul_constant = ov.opset8.constant([1.5], ov.Type.f32)
+    mul = ov.opset8.multiply(data, mul_constant)
+    add_constant = ov.opset8.constant([0.5], ov.Type.f32)
+    add = ov.opset8.add(mul, add_constant)
+    res = ov.opset8.result(add)
+    return ov.Model([res], [data], "model")
+
+model = create_simple_model()
+
+# ! [ov:layout:get_from_model]
+# Get layout for model input
+layout = layout_helpers.get_layout(model.input("input_tensor_name"))
+# Get layout for model with single output
+layout = layout_helpers.get_layout(model.output())
+# ! [ov:layout:get_from_model]