Implemented annotated local typing method without testing

src/autobigs/engine/structures/mlst.py

@@ -0,0 +1,33 @@
+from collections import defaultdict
+from dataclasses import dataclass
+from typing import Collection, Iterable, Mapping, Sequence, Union
+
+from autobigs.engine.structures.alignment import AlignmentStats
+
+@dataclass(frozen=True)
+class Allele:
+    allele_locus: str
+    allele_variant: str
+    partial_match_profile: Union[None, AlignmentStats]
+
+@dataclass(frozen=True)
+class MLSTProfile:
+    alleles: Collection[Allele]
+    sequence_type: str
+    clonal_complex: str
+
+@dataclass(frozen=True)
+class NamedMLSTProfile:
+    name: str
+    mlst_profile: Union[None, MLSTProfile]
+
+
+def alleles_to_mapping(alleles: Iterable[Allele]):
+    result = defaultdict(list)
+    for allele in alleles:
+        result[allele.allele_locus].append(allele.allele_variant)
+    result = dict(result)
+    for locus, variant in result.items():
+        if len(variant) == 1:
+            result[locus] = variant[0]
+    return result