How to get all attributes and attributes data of a method using reflection in C#

The end goal is to copy the attributes "as is" from a method to another method in a generated class.

public class MyOriginalClass
{
    [Attribute1]
    [Attribute2("value of attribute 2")]
    void MyMethod(){}
}

public class MyGeneratedClass
{
    [Attribute1]
    [Attribute2("value of attribute 2")]
    void MyGeneratedMethod(){}
}

I am able to list the attribute of the method using MethodInfo.GetCustomAttributes() however, this does not give me the attributes arguments; which I need to generate the corresponding attribute on the generated class.

Note that I don't know the type of the attributes (can't cast the Attribute).

I am using CodeDom to generate code.