prsm_data =
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        "p_value": "2.47e-07",
        "e_value": "2.47e-09",
        "fdr": "0",
        "matched_fragment_number": "7",
        "matched_peak_number": "10",
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                "spectrum_file_name": "C:/toppic_tutorial/tutorial_2/st_1_ms2.msalign",
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                "ms1_scans": "707",
                "ids": "345",
                "scans": "708",
                "precursor_mono_mass": "8420.6381",
                "precursor_charge": "16",
                "precursor_mz": "527.2972",
                "feature_inte": "1.2933e+08"
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                    "ptm_type": "Fixed",
                    "ptm": {
                        "abbreviation": "Carbamidomethylation",
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                    "occurence": {
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                        "right_pos": "23",
                        "anno": "C"
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                }
            }
        }
    }
}
