{"contact_search",{ca_string,ca_none},do_resolve_username,"contact_search username\tSearches user by username",NULL},
{"create_channel",{ca_string,ca_string,ca_user|ca_optional,ca_period,ca_none},do_create_channel,"create_channel <name> <about> <user>+\tCreates channel with users",NULL},
{"create_group_chat",{ca_string,ca_user,ca_period,ca_none},do_create_group_chat,"create_group_chat <name> <user>+\tCreates group chat with users",NULL},
{"create_secret_chat",{ca_user,ca_none},do_create_secret_chat,"create_secret_chat <user>\tStarts creation of secret chat",NULL},
{"del_contact",{ca_user,ca_none},do_del_contact,"del_contact <user>\tDeletes contact from contact list",NULL},