def someFunction(someparam, anotherParam) {
}
someFunction("onlyOneParam")

java.lang.NoSuchMethodError: No such DSL method 'someFunction' found among steps [acceptGitLabMR, addGitLabMRComment, archive, artifactoryDownload, artifactoryPromoteBuild, artifactoryUpload, bat, build, catchError, checkout, collectEnv, deleteDir, dir, dockerFingerprintFrom, dockerFingerprintRun, echo, envVarsForTool, error, fileExists, getArtifactoryServer, git, gitlabBuilds, gitlabCommitStatus, input, isUnix, load, mail, marathon, milestone, newArtifactoryServer, newBuildInfo, node, parallel, properties, publishBuildInfo, pwd, readFile, readTrusted, retry, script, sh, sleep, sshagent, stage, stash, step, svn, timeout, timestamps, tool, unarchive, unstash, updateGitlabCommitStatus, waitUntil, withCredentials, withDockerContainer, withDockerRegistry, withDockerServer, withEnv, wrap, writeFile, ws] or symbols [all, always, apiToken, architecture, archiveArtifacts, artifactManager, batchFile, booleanParam, buildButton, buildDiscarder, caseInsensitive, caseSensitive, choice, choiceParam, clock, cloud, command, cron, crumb, defaultView, demand, disableConcurrentBuilds, downloadSettings, downstream, dumb, envVars, file, fileParam, filePath, fingerprint, frameOptions, freeStyle, freeStyleJob, git, hyperlink, hyperlinkToModels, installSource, jdk, jdkInstaller, jgit, jnlp, jobDsl, jobName, junit, lastDuration, lastFailure, lastGrantedAuthorities, lastStable, lastSuccess, legacy, list, local, location, logRotator, loggedInUsersCanDoAnything, masterBuild, maven, maven3Mojos, mavenErrors, mavenMojos, mavenWarnings, myView, nodeProperties, nonStoredPasswordParam, none, paneStatus, parameters, password, pattern, pipelineTriggers, plainText, plugin, projectNamingStrategy, proxy, queueItemAuthenticator, quietPeriod, run, runParam, schedule, scm, scmRetryCount, search, security, shell, slave, stackTrace, standard, status, string, stringParam, swapSpace, text, textParam, tmpSpace, toolLocation, unsecured, upstream, viewsTabBar, weather, zfs, zip]
	at org.jenkinsci.plugins.workflow.cps.DSL.invokeMethod(DSL.java:145)
	at org.jenkinsci.plugins.workflow.cps.CpsScript.invokeMethod(CpsScript.java:117)
	at groovy.lang.GroovyObject$invokeMethod$1.call(Unknown Source)
	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
	at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:151)
	at org.kohsuke.groovy.sandbox.GroovyInterceptor.onMethodCall(GroovyInterceptor.java:21)
	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:115)
	at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:149)
	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:146)
	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:123)
	at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.methodCall(SandboxInvoker.java:16)
	at WorkflowScript.run(WorkflowScript:107)
	at ___cps.transform___(Native Method)
	at com.cloudbees.groovy.cps.impl.ContinuationGroup.methodCall(ContinuationGroup.java:48)
	at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.dispatchOrArg(FunctionCallBlock.java:109)
	at com.cloudbees.groovy.cps.impl.FunctionCallBlock$ContinuationImpl.fixArg(FunctionCallBlock.java:82)
	at sun.reflect.GeneratedMethodAccessor221.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
	at com.cloudbees.groovy.cps.impl.ConstantBlock.eval(ConstantBlock.java:21)
	at com.cloudbees.groovy.cps.Next.step(Next.java:58)
	at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:154)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:33)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:30)
	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runInSandbox(GroovySandbox.java:108)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:30)
	at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:164)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:361)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:80)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:236)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:226)
	at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:47)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)