@Override
	public Collection<String> getCallingConventionNames() {
		return dtMgr.getDefinedCallingConventionNames();
	}
Construct a new FunctionManager
@param dbHandle data base handle
@param addrMap address map for the program
@param openMode CREATE, UPDATE, READ_ONLY, or UPGRADE
@param lock the program synchronization lock
@param monitor
@throws VersionException if function manager's version does not match
its expected version
@throws CancelledException if the function table is being upgraded
and the user canceled the upgrade process
@throws IOException if there was a problem accessing the database
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/function/FunctionManagerDB.java