provides validation result for more than SingleIssue?

Currentely validate(data, schema) only returns SingleIssue, even if there are more than 1 failure.

using JSON, JSONSchema
data = JSON.parse("""{
    "Title": null,
    "Desc": 15
}
""")

schema = JSON.parse("""{
    "properties": {
        "Title": {
            "type": "string"
        },
        "Desc": {
            "type": "string"
        }
    }
}
""")

JSONSchema.validate(data, Schema(schema))

But I'm trying to setup JSONSchema validation on github action with large and complex data. So, it's preferable to present all the issues from the sigle run.

How about adding validateall, which returns Array{SingleIssue, 1} for all the validations?

Start at the validate(data, schema) entry point and inspect how SingleIssue is produced during schema validation. Determine how all failures can be collected without changing the existing result, then verify that the proposed validateall API returns every issue for the example data and schema.