Here are the data structures with brief descriptions:

[detail level 12]

NArduino_LMIC
CHalConfiguration_t
CHalPinmap_t
Cbcninfo_t	Information about the last and previous beacons
Clmic_channel_info_s	Description of one channel, filled in by LMIC_queryChannel()
Clmic_class_c_flags_u	Details of lmic_class_c_flags_t
Clmic_class_c_flags_s	Class C operating flags
Clmic_class_c_requests_u	Details of lmic_class_c_requests_t
Clmic_class_c_requests_s	Class C request flags
Clmic_class_c_s	Details of class C state
Clmic_client_data_s	Contents of lmic_client_data_t
Clmic_compliance_band_s
Clmic_compliance_eventcb_s
Clmic_compliance_s
Clmic_radio_data_s	Details of instance data for LMIC radio driver
CLMIC_SecureElement_Aes128Key_s	Object to carry an AES128 (16-byte) key
CLMIC_SecureElement_EUI_s	Object to carry a 64-bit EUI
CLMIC_SecureLElement_JoinRequest_s	Object to carry a LoRaWAN Join Request message
Clmic_session_state_info_s	What LMIC_querySessionState() reports about a blob
Clmic_t	Instance data for the LMIC
Clmic_time_reference_s
Cosjob_t
Coslmic_radio_rssi_s
Crxsched_t