Definition of 'parsed_response' method in httparty.rbs is wrong.

In the file httparty.rbs, the method parsed_response is inaccurately documented to return a string. However, upon examining the source code, it's clear that the parsed_response method's return type is determined by the Content-Type header of the HTTP response. The potential return types include:

• nil (if the HTTP response has no body),
• String,
• Array[Array[untyped]], or
• Hash.

It's important to note that users have the ability to override the parser, as illustrated in the code documentation. This flexibility allows for a variety of user-defined return types, making this a potentially common scenario. Given this recommended usage of the API, it would be wise to change the return type of 'parsed_response' to 'Object'.

Start with httparty.rbs and compare its parsed_response definition with the behavior in lib/httparty/parser.rb. Review examples/custom_parsers.rb for the supported override behavior, then update the signature and verify that it covers the documented response cases and custom parser returns.