If the contact_specific property is false,
this function checks if named text chatrooms can be joined by providing a chatroom identifier, for instance by calling
AccountChannelRequest.text
followed by set_target_id with
ROOM.
If the contact_specific property is true,
this function checks if the contact associated with this Capabilities can be
invited to named text chatrooms.
If the protocol is such that chatrooms can be joined or contacts can be invited, but only via a more elaborate D-Bus API than normal
(because more information is needed), then this method will return false.
| this |
a Capabilities object |
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