UnityEditor.StandardShaderGUI.GetSmoothnessMapChannel C# (CSharp) Method

        private static SmoothnessMapChannel GetSmoothnessMapChannel(Material material)
        {
            int @float = (int) material.GetFloat("_SmoothnessTextureChannel");
            if (@float == 1)
            {
                return SmoothnessMapChannel.AlbedoAlpha;
            }
            return SmoothnessMapChannel.SpecularMetallicAlpha;
        }

        private static void SetMaterialKeywords(Material material, StandardShaderGUI.WorkflowMode workflowMode)
        {
            StandardShaderGUI.SetKeyword(material, "_NORMALMAP", material.GetTexture("_BumpMap") || material.GetTexture("_DetailNormalMap"));
            if (workflowMode == StandardShaderGUI.WorkflowMode.Specular)
            {
                StandardShaderGUI.SetKeyword(material, "_SPECGLOSSMAP", material.GetTexture("_SpecGlossMap"));
            }
            else if (workflowMode == StandardShaderGUI.WorkflowMode.Metallic)
            {
                StandardShaderGUI.SetKeyword(material, "_METALLICGLOSSMAP", material.GetTexture("_MetallicGlossMap"));
            }
            StandardShaderGUI.SetKeyword(material, "_PARALLAXMAP", material.GetTexture("_ParallaxMap"));
            StandardShaderGUI.SetKeyword(material, "_DETAIL_MULX2", material.GetTexture("_DetailAlbedoMap") || material.GetTexture("_DetailNormalMap"));
            MaterialEditor.FixupEmissiveFlag(material);
            bool state = (material.globalIlluminationFlags & MaterialGlobalIlluminationFlags.EmissiveIsBlack) == MaterialGlobalIlluminationFlags.None;

            StandardShaderGUI.SetKeyword(material, "_EMISSION", state);
            if (material.HasProperty("_SmoothnessTextureChannel"))
            {
                StandardShaderGUI.SetKeyword(material, "_SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A", StandardShaderGUI.GetSmoothnessMapChannel(material) == StandardShaderGUI.SmoothnessMapChannel.AlbedoAlpha);
            }
        }