Deserialization of 'monotone_constraints' from JSON Representation of MOJO Details Does Not Work

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JSON model details:
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "ModelParameterSchemaV3",}}
{{"schema_type": "Iced"}}
{{},}}
{{"name": "monotone_constraints",}}
{{"label": "monotone_constraints",}}
{{"help": "A mapping representing monotonic constraints. Use +1 to enforce an increasing constraint and -1 to specify a decreasing constraint.",}}
{{"required": false,}}
{{"type": "KeyValue[]",}}
{{"default_value": null,}}
{{"actual_value": [}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "AGE",}}
{{"value": 1}}
{{},}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "PSA",}}
{{"value": -1}}
{{}}}
{{],}}
{{"input_value": [}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "AGE",}}
{{"value": 1}}
{{},}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "PSA",}}
{{"value": -1}}
{{}}}
{{],}}
{{"level": "secondary",}}
{{"values": [],}}
{{"is_member_of_frames": [],}}
{{"is_mutually_exclusive_with": [],}}
{{"gridable": false}}
{{},}}

see the attached screenshot.

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Marek Novotny commented: cc [~accountid:557058:04659f86-fbfe-4d01-90c9-146c34df6ee6] [~accountid:5a32df017dcf343865c26fa5] [~accountid:5bd82be4216ccf49622e5137]

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Jan Sterba commented: please provide steps to reproduce and what is the desired output, I dont understand whats wrong here

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Marek Novotny commented: [~accountid:5bd82be4216ccf49622e5137]

The actual value of {{monotone_constraints}} in JSON representation is:
{{"actual_value": [}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "AGE",}}
{{"value": 1}}
{{},}}
{{{}}
{{"__meta": {}}
{{"schema_version": 3,}}
{{"schema_name": "KeyValueV3",}}
{{"schema_type": "KeyValue"}}
{{},}}
{{"key": "PSA",}}
{{"value": -1}}
{{}}}
{{]}}

but it’s deserialized as {{null}}.

I’ve loaded the h2o mojo model via this h2o API:

{{import hex.genmodel.{ModelMojoReader, MojoModel, MojoReaderBackendFactory}}}
{{val reader = MojoReaderBackendFactory.createReaderBackend(mojoFile.getAbsolutePath)}}
{{val h2oMojo = ModelMojoReader.readFrom(reader, true)}}

and i would expect some non-null object as a result of this expression:
{{val parameters = h2oMojo._modelAttributes.getModelParameters()}}
{{parameters.filter(i => i.name == "monotone_constraints").head.actual_value}}

Do you want me also to provide the mojo with {{monotone_constraints}} set? Do you want to know more details?

[exalate-issue-sync]

Jan Sterba commented: thanks, now I know what is the problem

[h2o-ops]

JIRA Issue Migration Info

Jira Issue: PUBDEV-7793
Assignee: Jan Sterba
Reporter: Marek Novotny
State: Resolved
Fix Version: 3.32.0.2
Attachments: Available (Count: 2)
Development PRs: Available

Linked PRs from JIRA

#5034

Attachments From Jira

Attachment Name: gbm.json
Attached By: Marek Novotny
File Link:https://h2o-3-jira-github-migration.s3.amazonaws.com/PUBDEV-7793/gbm.json

Attachment Name: Screen Shot 2020-09-23 at 17.32.25.png
Attached By: Marek Novotny
File Link:https://h2o-3-jira-github-migration.s3.amazonaws.com/PUBDEV-7793/Screen Shot 2020-09-23 at 17.32.25.png