def METHOD_NAME(self, obj: Dict[str, Any]) -> "Policy":
    # import pydevd
    # pydevd.settrace("localhost", port=5678)
    policy = Policy(self.parent)
    policy.revision = obj.get("RevisionId", "")
    # set some default values if these keys are not set
    self.ensure_set(obj, "Effect", "Allow")
    self.ensure_set(obj, "Resource", self.parent.function_arn + ":$LATEST")
    self.ensure_set(obj, "StatementId", str(mock_random.uuid4()))
    # transform field names and values
    self.transform_property(obj, "StatementId", "Sid", self.nop_formatter)
    self.transform_property(obj, "Principal", "Principal", self.principal_formatter)
    self.transform_property(
        obj, "SourceArn", "SourceArn", self.source_arn_formatter
    )
    self.transform_property(
        obj, "SourceAccount", "SourceAccount", self.source_account_formatter
    )
    self.transform_property(
        obj, "PrincipalOrgID", "Condition", self.principal_org_id_formatter
    )
    # remove RevisionId and EventSourceToken if they are set
    self.remove_if_set(obj, ["RevisionId", "EventSourceToken"])
    # merge conditional statements into a single map under the Condition key
    self.condition_merge(obj)
    # append resulting statement to policy.statements
    policy.statements.append(obj)
    return policy