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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 get_numeric_value(string_value):
 """ parses string_value and returns only number-like part """

    num_chars = ['.', '+', '-']
    number = ''
    for c in string_value:
        if c.isdigit() or c in num_chars:
            number += c
    return number