Error in `sanitize_hypothesis_formula(hypothesis)`: Assertion on 'Right-hand side of `hypothesis` formula' failed: Must be element of set {'reference','sequential','meandev'}, but is 'pairwise'.

model <- lm(Sepal.Length ~ Species + Sepal.Width, data = iris)
estim <- suppressMessages(estimate_means(model, "Species", backend = "emmeans"))
"names", "row.names", "class", "at", "by", "table_title", "table_footer",
"model", "response", "ci", "backend", "coef_name", "focal_terms",
estim <- suppressMessages(estimate_means(model, "Species", backend = "marginaleffects"))
"names", "class", "row.names", "at", "by", "focal_terms", "adjusted_for",
"predict", "marginalize", "datagrid", "preserve_range", "table_title",
"table_footer", "model", "response", "ci", "backend", "coef_name"
estim <- suppressMessages(estimate_contrasts(model, "Species", backend = "emmeans"))
"names", "class", "row.names", "table_title", "table_footer",
"model", "response", "ci", "p_adjust", "backend", "predict",
estim <- suppressMessages(estimate_contrasts(model, "Species", backend = "marginaleffects"))
"names", "row.names", "class", "table_title", "table_footer",
"model", "response", "ci", "p_adjust", "backend", "focal_terms",
"adjusted_for", "predict", "comparison", "contrast", "marginalize",
estim <- suppressMessages(estimate_slopes(model, "Sepal.Width", backend = "emmeans"))
"model", "response", "ci", "trend", "coef_name"
estim <- suppressMessages(estimate_slopes(model, "Sepal.Width", backend = "marginaleffects"))
"names", "class", "row.names", "trend", "comparison", "coef_name",
"slope", "table_title", "table_footer", "model", "response", "ci"
model <- lm(Sepal.Width ~ Petal.Length + Species * Petal.Width, data = iris)
by = c("Species", "Petal.Width = [fivenum]"),
"names", "row.names", "class", "ci", "keep_iterations", "response",
"model", "focal_terms", "preserve_range", "table_title", "table_footer",
"adjusted_for", "at_specs", "at", "by", "reference", "data"

Names of attributes(estim) ('names', 'class', 'row.names', 'trend', 'comparison', 'coef_name', 'table_title', 'table_footer', 'model', 'response', 'ci') don't match 'names', 'class', 'row.names', 'trend', 'comparison', 'coef_name', 'slope', 'table_title', 'table_footer', 'model', 'response', 'ci'