'Add entity value.
Create a new value for an entity.
:param workspace_id: The workspace ID.
:param entity: The name of the entity.
:param value: The text of the entity value.
:param metadata: Any metadata related to the entity value.
:param synonyms: Any array of synonyms for the entity value.'

def create_value(self, workspace_id, entity, value, metadata=None, synonyms=None):

    params = {'version': self.version}
    data = {'value': value, 'metadata': metadata, 'synonyms': synonyms}
    return self.request(method='POST', url='/v1/workspaces/{0}/entities/{1}/values'.format(workspace_id, entity), params=params, json=data, accept_json=True)
