def trimLeft(self, amount):
if amount == <NUM_LIT:0>:<EOL><INDENT>return<EOL><DEDENT>self.sequenceData = self.sequenceData[amount:]<EOL>self.sequenceQual = self.sequenceQual[amount:]<EOL>
Trim this fastqSequence in-place by removing <amount> nucleotides from
the 5' end (left end).

:param amount: the number of nucleotides to trim from the left-side of
               this sequence.