Custom Approval ActionIdType AWS - json

Question

I am trying to build a custom approval step for my CodePipeline on AWS. The AWS built default approval ActionTypeId does not let you output artifacts. I want my approval step to be able to output artifacts. I found this document on creating custom ActionTypeIds but I am still confused an fuzzy on this. Any help will be really appreciated.
I've posted the code from AWS. can someone help me understand the "settings" and the "configurationProperties" sections?
{
"category": "Approval",
"provider": "My-Custom-ActionIdType",
"version": "1",
"settings": {
"entityUrlTemplate": "https://my-build-instance/job/{Config:CGBoyProject}/",
"executionUrlTemplate": "https://my-build-instance/job/{Config:ProjectName}/lastSuccessfulBuild/{ExternalExecutionId}/"
},
"configurationProperties": [{
"name": "ProjectName",
"required": true,
"key": true,
"secret": false,
"queryable": false,
"description": "The name of the build project must be provided when this action is added to the pipeline.",
"type": "String"
}],
"inputArtifactDetails": {
"maximumCount": integer,
"minimumCount": integer
},
"outputArtifactDetails": {
"maximumCount": integer,
"minimumCount": integer
},
"tags": [{
"key": "Project",
"value": "ProjectA"
}]
}