In Some scenarios we might want to access some of the internally protected item to outside the assembly. By using the attribute [assembly: InternalsVisibleTo(“AssemblyName”)] in the assemblyInfo class you can access
the all the members and internal types to another assemblies.
For example if i want to access the below internal class and method in to another assembly
namespace InternalThings
{
internal class InternalClass
{
internal void InternalMethod()
{
}
}
}
for example DemoInternal, Just a add an attribute to assemblyInfo class
[assembly: InternalsVisibleTo(“DemoInternal”)] in the InternalThings Assembly ie, Our Internal members existing project or assembly.

Enjoy Coding…