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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 resolve_by_oai_id(self, oai_id):
 """Resolve the funder from the OpenAIRE OAI record id. Hack for when funder is not provided in OpenAIRE. """

        if oai_id.startswith('oai:dnet:'):
            oai_id = oai_id[len('oai:dnet:'):]
        prefix = oai_id.split("::")[0]
        suffix = prefix.replace("_", "").upper()
        oaf = "{0}::{1}".format(prefix, suffix)
        return self.data.get(oaf)