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#### 2.6.16 Set options for the session

Here is a list of session options which are not yet described with other commands. The general syntax for an Assuan option is:

         OPTION  key=value

Supported keys are:

`agent-awareness`
  This may be used to tell gpg-agent of which gpg-agent version the client is aware of. gpg-agent uses this information to enable features which might break older clients.
`putenv`
  Change the session's environment to be used for the Pinentry. Valid values are:
  name
    Delete envvar name
  name`=`
    Set envvar name to the empty string
  name`=`value
    Set envvar name to the string value.
`use-cache-for-signing`
  See Assuan command `PKSIGN`.
`allow-pinentry-notify`
  This does not need any value. It is used to enable the PINENTRY_LAUNCHED inquiry.