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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def __annotate_sequence_with_context(seq, i_line_parts):
 """Extract meta data from pre-tokenized maf i-line and populate sequence. i -- always come after s lines, and contain information about the context of the sequence. Five fields are given, not counting the 'i' * source sequence (must match s line before this) * left status (see below) * left count; num of bases in source sequence between start of the block and end of previous block (0 if this is the first) * right status (see below) * right count; num of bases in source after end of this block before start of next status (left/right) is a single char and can be: * C -- the sequence before or after is contiguous with this block. * I -- there are bases between the bases in this block and the one before or after it. * N -- this is the first sequence from this src chrom or scaffold. * n -- this is the first sequence from this src chrom or scaffold but it is bridged by another alignment from a different chrom or scaffold. * M -- there is missing data before or after this block (Ns in the sequence). * T -- the sequence in this block has been used before in a previous block (likely a tandem duplication) """

  if i_line_parts[1] != seq.name:
    raise MAFError("Trying to populate meta data for sequence " + seq.name +
                   " with i-line information for " +
                   str(i_line_parts[1]) + "; maflormed MAF file?")
  if len(i_line_parts) != 6:
    raise MAFError("i-line with " + str(len(i_line_parts)) + "; expected 6.")
  seq.meta_data[LEFT_STATUS_KEY] = i_line_parts[2]
  seq.meta_data[LEFT_COUNT_KEY] = int(i_line_parts[3])
  seq.meta_data[RIGHT_STATUS_KEY] = i_line_parts[4]
  seq.meta_data[RIGHT_COUNT_KEY] = int(i_line_parts[5])