removes custom json parsing (#11)

%include <std_string.i>

%pythoncode %{

    import json    

%}

%include "Isd.h"

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%extend csm::Isd {

    %pythoncode %{

        import json

        import numpy as np

        @classmethod

        def loads(cls, stream):

            isd = cls()

            if not isinstance(stream, dict):

                stream = json.loads(stream)

            for k, v in stream.items():

                if isinstance(v, list):

                    for i in v:

                        isd.addParam(k, str(i))

                isd.addParam(k, str(v))

            return isd

        @classmethod

        def load(cls, fp):

            return cls.loads(fp.read())

    %}

}

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%module(package="csmapi") usgs

%{

    #include "UsgsAstroLsPlugin.h"

%}

%import "UsgsAstroLsPlugin.h"

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