var @class = new Class("Create_Class");
@class.ToString();

class Create_Class
{
}

var @class = new Class("Create_Class_With_Methods")
    .AddMembers(new Field("Field_1"))
    .AddMembers(new Method(nameof(Int32), "Method_2"));

class Create_Class_With_Methods
{
    Object Field_1;

    Int32 Method_2()
    {
    }
}