What parameters does the EDS AdminShell connectAsAdmin() method require?

Issue

• Receive "No signature of method" error when attempting to call connectAsAdmin()
• Receive below error when executing AdminShell script:

FATAL: groovy.lang.MissingMethodException: No signature of method: groovysh_evaluate.connectAsAdmin() is applicable for argument types: (java.lang.String, java.lang.String, java.lang.String) values: [mm://myserver:31443, admin, admin]
groovy.lang.MissingMethodException: No signature of method: groovysh_evaluate.connectAsAdmin() is applicable for argument types: (java.lang.String, java.lang.String, java.lang.String) values: [mm://myserver:31443, admin, admin]
    at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.unwrap(ScriptBytecodeAdapter.java:54)
    at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.callCurrent(PogoMetaClassSite.java:78)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:44)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:143)
    at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:159)
    at groovysh_evaluate.run(groovysh_evaluate:3)
    at groovysh_evaluate$run.call(Unknown Source)
    at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:40)
    at groovysh_evaluate$run.call(Unknown Source)
    at org.codehaus.groovy.tools.shell.Interpreter.evaluate(Interpreter.groovy:67)
    at org.codehaus.groovy.tools.shell.Interpreter$evaluate.call(Unknown Source)
    at org.codehaus.groovy.tools.shell.Groovysh.execute(Groovysh.groovy:143)
    at org.codehaus.groovy.tools.shell.Groovysh$execute.callCurrent(Unknown Source)
    at org.codehaus.groovy.tools.shell.Shell.leftShift(Shell.groovy:114)