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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_solr_type(self, field):
 """Returns the Solr type of the specified field name. Assumes the convention of dynamic fields using an underscore + type character code for the field name. """

        field_type = 'string'
        try:
            field_type = FIELD_TYPE_CONVERSION_MAP[field]
            return field_type
        except:
            pass
        fta = field.split('_')
        if len(fta) > 1:
            ft = fta[len(fta) - 1]
            try:
                field_type = FIELD_TYPE_CONVERSION_MAP[ft]
                # cache the type so it's used next time
                FIELD_TYPE_CONVERSION_MAP[field] = field_type
            except:
                pass
        return field_type