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merge_mappings

Source code in library_analyzer/processing/migration/model/_mapping.py 
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def merge_mappings(mapping_a: Mapping, mapping_b: Mapping) -> Mapping:
    similarity = (mapping_a.similarity + mapping_b.similarity) / 2
    codomain = merge_api_elements_and_remove_duplicates(
        mapping_a.get_apiv2_elements(), mapping_b.get_apiv2_elements()
    )
    domain: list[api_element] = merge_api_elements_and_remove_duplicates(
        mapping_a.get_apiv1_elements(), mapping_b.get_apiv1_elements()
    )
    if len(domain) == 1 and len(codomain) == 1:
        return OneToOneMapping(similarity, domain[0], codomain[0])
    if len(domain) == 1:
        return OneToManyMapping(similarity, domain[0], codomain)
    if len(codomain) == 1:
        return ManyToOneMapping(similarity, domain, codomain[0])
    return ManyToManyMapping(similarity, domain, codomain)