def is_indel(reference_bases, alternate_bases):
if len(reference_bases) > <NUM_LIT:1>:<EOL><INDENT>return True<EOL><DEDENT>for alt in alternate_bases:<EOL><INDENT>if alt is None:<EOL><INDENT>return True<EOL><DEDENT>elif len(alt) != len(reference_bases):<EOL><INDENT>return True<EOL><DEDENT><DEDENT>return False<EOL>
Return whether or not the variant is an INDEL