[
  0, //CHAN_ID
  "fiu", //MSG_TYPE
  [
    "sym", //UPDATE_TYPE
    "fUSD",  //SYMBOL
    [
      0.0008595462068208099, //YIELD_LOAN
      0, //YIELD_LEND
      1.8444560185185186, //DURATION_LOAN
      0 //DURATION_LEND
    ] //FUNDING_INFO_UPDATE_ARRAY
  ] //UPDATE_ARRAY
]

Funding info update data

Index	Field	Type	Description
[0]	CHAN_ID	Int	Identification number assigned to the channel for the duration of this connection.
[1]	MSG_TYPE	String	'fiu' (funding info update)
[2]	UPDATE_ARRAY	Array	Funding info 'sym' update

Update array data (Index [2])

Index	Field	Type	Description
[0]	UPDATE_TYPE	String	Specifies the type of the update: 'sym'
[1]	SYMBOL	String	Symbol related to the update
[2]	FUNDING_INFO_UPDATE_ARRAY	Array	Funding info update array

Funding info update array (Index [2]

Index	Field	Type	Description
[0]	YIELD_LOAN	float	Weighted average rate for taken funding
[1]	YIELD_LEND	float	Weighted average rate for provided funding
[2]	DURATION_LOAN	float	Weighted average duration for taken funding
[3]	DURATION_LEND	float	Weighted average duration for provided funding

📘
NOTE
These messages have gained the ability to send the calculation values equal to "null" meaning that the new calculated value is not yet available.
In order to receive those values the user have to actively request for it with a "calc" message.
See calc input dedicated section for more details.