GroovyScriptHelper issues - method missing

I’m trying to build a datasource for our health-check API that returns a system name, status, and response time. I believe I need to set up active discovery to map the system names as the instance keys, then query the API again to get that data. Issue I’m running into is that the GSH methods intended to handle the instancing won’t load, giving me the below error. The actual script does run successfully, it’s just the instancing bit that’s giving me trouble.

MissingMethodException: No signature of method: Script1.withBinding() is applicable for argument types: (groovy.lang.Binding) values: [groovy.lang.Binding@781fc692]
Possible solutions: setBinding(groovy.lang.Binding), getBinding()
com.logicmonitor.common.sse.utils.exception.ScriptExecutingFailedException: MissingMethodException: No signature of method: Script1.withBinding() is applicable for argument types: (groovy.lang.Binding) values: [groovy.lang.Binding@781fc692]
Possible solutions: setBinding(groovy.lang.Binding), getBinding()
	at com.logicmonitor.common.sse.utils.GroovyScriptHelper.execute(GroovyScriptHelper.java:197)
	at jdk.internal.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at com.logicmonitor.common.sse.executor.impl.GroovyScriptHelperWrapper.execute(GroovyScriptHelperWrapper.java:86)
	at com.logicmonitor.common.sse.executor.GroovyScriptExecutor.execute(GroovyScriptExecutor.java:75)
	at com.logicmonitor.common.sse.SSEScriptExecutor$ScriptExecutingTask.call(SSEScriptExecutor.java:212)
	at com.logicmonitor.common.sse.SSEScriptExecutor$ScriptExecutingTask.call(SSEScriptExecutor.java:155)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:829)
 elapsed time: 0 seconds

Code-block I’m using for discovery:

import com.santaba.agent.groovyapi.http.*; 
import groovy.json.JsonBuilder; 
import groovy.json.JsonSlurper; 
import com.logicmonitor.common.sse.utils.GroovyScriptHelper as GSH
import com.logicmonitor.mod.Snippets

def modLoader = GSH.getInstance()._getScript("Snippets", Snippets.getLoader()).withBinding(getBinding())
def lmEmit = modLoader.load("lm.emit", "0")   // Load LM emit module

def api_key = hostProps.get("boomi.client_id"); 
def api_secret = hostProps.get("boomi.client_secret");
def api_scope = hostProps.get("boomi.api_scope") 
if (!api_key && ! api_secret) {
    println "boomi.client_id and boomi.client_secret must be defined."; 
    return 1;
}

// used to get an OAuth2 token
def api_auth_host = "login.microsoftonline.com"; 
def api_tenant_id = hostProps.get("boomi.azure_tenant_id"); 
def api_auth_url = "https://login.microsoftonline.com/${api_tenant_id}/oauth2/v2.0/token"

// define API path to get info from
def api_base_host = hostProps.get("system.hostname"); 
def api_base_url = "https://${api_base_host}/healthcheck/v2"; 
def api_x_apikey = hostProps.get("boomi.apixkey");
// get OAuth2 token
def auth_token; 
try {
    def conn = HTTP.open(api_auth_host, 443); 
    def headers = [
        "Content-Type": "application/x-www-form-urlencoded"
    ]; 
    def postdata = "grant_type=client_credentials&client_id=${api_key}&client_secret=${api_secret}&scope=${api_scope}"
    def response = HTTPPost(api_auth_host, api_auth_url, postdata, headers); 
    auth_token = ParseJsonResponse(response);
}
catch (Exception e) {
    println "OAuth2 Exception: " + e.message; 
    return 1;
}

// get data from API using token
def systems; 
try {
    def conn = HTTP.open(api_auth_host, 443); 
    def headers = [
        "Accept": "application/json", 
        "Authorization": "${auth_token.token_type} ${auth_token.access_token}",
        "X-APIKey": api_x_apikey
    ]; 
    def response = HTTPGet(api_base_host, api_base_url + "/oncloud", headers); 
    systems = ParseJsonResponse(response);
}
catch (Exception e) {
    println "API Exception from oncloud: " + e.message; 
    return 1;
}

systems?.each {
    val ->
	def wildvalue   = val.systemName
	def wildalias   = wildvalue
    def description = val.systemName
    lmEmit.instance(wildvalue, wildalias, description, [:])
}

try {
    def conn = HTTP.open(api_auth_host, 443); 
    def headers = [
        "Accept": "application/json", 
        "Authorization": "${auth_token.token_type} ${auth_token.access_token}",
        "X-APIKey": api_x_apikey
    ]; 
    def response = HTTPGet(api_base_host, api_base_url + "/onpremise", headers); 
    systems = ParseJsonResponse(response);
}
catch (Exception e) {
    println "API Exception from onpremise: " + e.message; 
    return 1;
}

systems?.each {
    val ->
	def wildvalue   = val.systemName
	def wildalias   = wildvalue
    def description = val.systemName
    lmEmit.instance(wildvalue, wildalias, description, [:])
}

return 0; 

// Functions

// Convenience method for making HTTP POST requests to REST API
def HTTPPost(host, url, post_data, request_headers, user = null, pass = null) {
    // Create an http client object
    def conn = HTTP.open(host, 443)

    // If we have credentials add them to the headers
    if (user && pass) {
        conn.setAuthentication(user, pass)
    }

    // Query the endpoint
    def response = conn.post(url, post_data, request_headers)
    def response_code = conn.getStatusCode()
    def response_body = conn.getResponseBody()

    // Close the connection
    conn.close(); 

    return 
;
}

// Convenience method for making HTTP POST requests to REST API
def HTTPGet(host, url, request_headers, user = null, pass = null) {
    // Create an http client object
    def conn = HTTP.open(host, 443)

    // If we have credentials add them to the headers
    if (user && pass) {
        conn.setAuthentication(user, pass)
    }

    // Query the endpoint
    def response = conn.get(url, request_headers)
    def response_code = conn.getStatusCode()
    def response_body = conn.getResponseBody()

    // Close the connection
    conn.close(); 

    return 
;
}

// Convenience method for parsing REST responses.
def ParseJsonResponse(response) {
    // Successful response?
    if (response.code =~ /^2\d\d/) {
        // yes, parse out a JSON object
        return new JsonSlurper()?.parseText(response.body);
    } else {
        // No, error out
        throw new Exception("There was an error fetching from the API: ${response.code}");
    }
}