== Why is this an issue?
Strings and integral types are typically used as indexers. When some other type is required, it typically indicates design problems, and potentially a situation where a method should be used instead.
=== Noncompliant code example
[source,csharp]
----
public int this[MyCustomClass index] // Noncompliant
{
// get and set accessors
}
ifdef::env-github,rspecator-view[]
'''
== Implementation Specification
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include::message.adoc[]
include::highlighting.adoc[]
endif::env-github,rspecator-view[]
