custom-param-settings

Property Name	Type	Required	Description
`custom-param-type`	string	Required	Custom parameter type: SHORT-TEXT LONG-TEXT FIXED SELECTION BOOLEAN MERCHANT PASSED VALUE READ-ONLY
`short-text-type`	container	Optional	Container of short-text-type properties.
`visual-settings`	container	Optional	Container of visual-settings properties.
`fixed-selection-type`	container	Optional	Container of fixed-selection-type properties.
`merchant-value-type`	container	Optional	Container of merchant-value-type properties.

Property Name	Type	Description
`custom-param-type`	string	Custom parameter type: SHORT-TEXT LONG-TEXT FIXED SELECTION BOOLEAN MERCHANT PASSED VALUE READ-ONLY
`short-text-type`	container	Container of short-text-type properties.
`visual-settings`	container	Container of visual-settings properties.
`fixed-selection-type`	container	Container of fixed-selection-type properties.
`merchant-value-type`	container	Container of merchant-value-type properties.