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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 create_genome_size_dict(genome):
 # type: (str) -> Dict[str,int] """Creates genome size dict from string containing data."""


    size_file = get_genome_size_file(genome)
    size_lines = open(size_file).readlines()

    size_dict = {}
    for line in size_lines:
        genome, length = line.split()
        size_dict[genome] = int(length)

    return size_dict