Timeout obsoletion attribute is obsolete

[SomeTroglodyte]

Is your feature request related to a problem? Please describe.

• this line:
  

  odata.net/src/Microsoft.OData.Client/DataServiceContext.cs

  Line 499 in 2f80bce

  [Obsolete("The Timeout property is obsolete. Use IHttpClientFactory to configure the timeout.")]

  
  mentions a non-existing property. I can only find HttpClientHandlerProvider.

Describe the solution you'd like

• Easily accessible documentation on how to properly configure a timeout for the server response
• Including a ready-to-copy example
• Taking into account that most users will have their context builders auto-generated by the wizard
• Actually, since a solution will most likely be in the range of 20 source lines and not trivially memorizable, consider reintroducing the simpler timeout property

Describe alternatives you've considered

• My usecase is borderline, so just hammering repeats will someday succeed fast enough 🤪

Additional context

• This was discussed then last modified in Possible inconvenient implementation of timeout in OData.Client #3131 and linked PR, or so it seems to me.

Would you like to work on this feature?

• Yes
• No
• Maybe (need guidance)

[xuzhg]

@SomeTroglodyte Thanks for reporting this. As you mentioned, this PR is committed to add the attribute. Meanwhile, this PR is committed to remove the property.
I am trying to understand what you want from this issue. Can you please share more details about your proposal or concerns?

[SomeTroglodyte]

what you want

Simple: Someone who installed this extension - it's the public face of this repository, isn't it? ...And went and used the wizard on a live odata service will end up with an automatically generated wrapper. That source explicitly discourages changes in the line 6+7 comments, and will be used to get an instance of a Microsoft.OData.Client.DataServiceContext. On that instance, the existing hints do not apply. I wish to prod a little, for someone who understands this to provide an actually working example (how to modify the service's first-response timeout). The code shown in #3135 just doesn't work, it mentions DataServiceContext but doesn't apply to it.