This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

Attr	Class for wrapping lyd_attr
Context	Class for wrapping ly_ctx
Data_Node	Classes for wrapping lyd_node
Data_Node_Anydata	Class for wrapping lyd_node_anydata
Data_Node_Leaf_List	Class for wrapping lyd_node_leaf_list
Decimal64
Deviate
Deviation
Difflist	Class for wrapping lyd_difflist
Error	Class for wrapping ly_err_item
Ext
Ext_Instance
Feature
Ident
Iffeature
Import
Include
lyd_anydata_value	Anydata value union
lyd_attr	Attribute structure
lyd_difflist	Structure for the result of lyd_diff(), describing differences between two data trees
lyd_node	Generic structure for a data node, directly applicable to the data nodes defined as LYS_CONTAINER, LYS_LIST and LYS_CHOICE
lyd_node_anydata	Structure for data nodes defined as LYS_ANYDATA or LYS_ANYXML
lyd_node_leaf_list	Structure for data nodes defined as LYS_LEAF or LYS_LEAFLIST
lyd_value_u	Node's value representation
lyext_plugin
lyext_plugin_complex
lyext_plugin_list
lyext_substmt	Description of the extension instance substatement
lys_deviate	YANG deviate statement structure, see RFC 6020 sec. 7.18.3.2
lys_deviation	YANG deviation statement structure, see RFC 6020 sec. 7.18.3
lys_ext	YANG extension definition
lys_ext_instance	Generic extension instance structure
lys_ext_instance_complex	Complex extension instance structure
lys_feature	YANG feature definition structure
lys_ident	Structure to hold information about identity, see RFC 6020 sec. 7.16
lys_iffeature	Compiled if-feature expression structure
lys_import	YANG import structure used to reference other schemas (modules)
lys_include	YANG include structure used to reference submodules
lys_module	Main schema node structure representing YANG module
lys_node	Common structure representing single YANG data statement describing
lys_node_anydata	Schema anydata (and anyxml) node structure
lys_node_augment	YANG augment structure (covering both possibilities - uses's substatement as well as (sub)module's substatement)
lys_node_case	Schema case node structure
lys_node_choice	Schema choice node structure
lys_node_container	Schema container node structure
lys_node_grp	Schema grouping node structure
lys_node_inout	RPC input and output node structure
lys_node_leaf	Schema leaf node structure
lys_node_leaflist	Schema leaf-list node structure
lys_node_list	Schema list node structure
lys_node_notif	Schema notification node structure
lys_node_rpc_action	Schema rpc/action node structure
lys_node_uses	Schema uses node structure
lys_refine	YANG uses's refine substatement structure, see RFC 6020 sec. 7.12.2
lys_refine_mod	Union to hold target modification in lys_refine
lys_refine_mod_list	Container for list modifications in lys_refine_mod
lys_restr	YANG validity restriction (must, length, etc.) structure providing information from the schema
lys_revision	YANG revision statement for (sub)modules
lys_submodule	Submodule schema node structure that can be included into a YANG module
lys_tpdf	YANG typedef structure providing information from the schema
lys_type	YANG type structure providing information from the schema
lys_type_bit	Single bit value specification for lys_type_info_bits
lys_type_enum	Single enumeration value specification for lys_type_info_enums
lys_type_info	Union for holding type-specific information in lys_type
lys_type_info_binary
lys_type_info_bits	Container for information about bits types (LY_TYPE_BINARY), used in lys_type_info
lys_type_info_dec64	Container for information about decimal64 types (LY_TYPE_DEC64), used in lys_type_info
lys_type_info_enums	Container for information about enumeration types (LY_TYPE_ENUM), used in lys_type_info
lys_type_info_ident	Container for information about identity types (LY_TYPE_IDENT), used in lys_type_info
lys_type_info_inst	Container for information about instance-identifier types (LY_TYPE_INST), used in lys_type_info
lys_type_info_lref	Container for information about leafref types (LY_TYPE_LEAFREF), used in lys_type_info
lys_type_info_num	Container for information about integer types, used in lys_type_info
lys_type_info_str	Container for information about string types (LY_TYPE_STRING), used in lys_type_info
lys_type_info_union	Container for information about union types (LY_TYPE_UNION), used in lys_type_info
lys_unique	YANG list's unique statement structure, see RFC 6020 sec. 7.8.3
lys_when	YANG when restriction, see RFC 6020 sec. 7.19.5
lytype_plugin_list
lyxml_attr	Element's attribute definition
lyxml_elem	Structure describing an element in an XML tree
lyxml_ns	Namespace definition
Context::mod_missing_cb_return
Module	Classes for wrapping lys_module
Refine
Refine_Mod
Refine_Mod_List
Restr
Revision
Schema_Node
Schema_Node_Anydata
Schema_Node_Augment
Schema_Node_Case
Schema_Node_Choice
Schema_Node_Container
Schema_Node_Grp
Schema_Node_Inout
Schema_Node_Leaf
Schema_Node_Leaflist
Schema_Node_List
Schema_Node_Notif
Schema_Node_Rpc_Action
Schema_Node_Uses
Set	Class for wrapping ly_set
Submodule	Classes for wrapping lys_submodule
Substmt
Tpdf
Type
Type_Bit
Type_Enum
Type_Info
Type_Info_Binary
Type_Info_Bits
Type_Info_Dec64
Type_Info_Enums
Type_Info_Ident
Type_Info_Inst
Type_Info_Lref
Type_Info_Num
Type_Info_Str
Type_Info_Union
Unique
Value	Class for wrapping lyd_val
When
Xml_Attr
Xml_Elem
Xml_Ns	Class for wrapping lyxml_ns